diff --git a/coordinator/renderer.lua b/coordinator/renderer.lua
index edf0de8..f0563ca 100644
--- a/coordinator/renderer.lua
+++ b/coordinator/renderer.lua
@@ -171,15 +171,15 @@ end
 function renderer.ui_ready() return engine.ui_ready end
 
 -- handle a touch event
----@param event monitor_touch
-function renderer.handle_touch(event)
+---@param event mouse_interaction
+function renderer.handle_mouse(event)
     if event.monitor == engine.monitors.primary_name then
-        ui.main_layout.handle_touch(event)
+        ui.main_layout.handle_mouse(event)
     else
         for id, monitor in pairs(engine.monitors.unit_name_map) do
             if event.monitor == monitor then
                 local layout = ui.unit_layouts[id]  ---@type graphics_element
-                layout.handle_touch(event)
+                layout.handle_mouse(event)
             end
         end
     end
diff --git a/coordinator/startup.lua b/coordinator/startup.lua
index a6a81f1..95178ad 100644
--- a/coordinator/startup.lua
+++ b/coordinator/startup.lua
@@ -19,7 +19,7 @@ local iocontrol    = require("coordinator.iocontrol")
 local renderer     = require("coordinator.renderer")
 local sounder      = require("coordinator.sounder")
 
-local COORDINATOR_VERSION = "v0.12.3"
+local COORDINATOR_VERSION = "v0.12.4"
 
 local print = util.print
 local println = util.println
@@ -354,7 +354,7 @@ local function main()
             end
         elseif event == "monitor_touch" then
             -- handle a monitor touch event
-            renderer.handle_touch(core.events.touch(param1, param2, param3))
+            renderer.handle_mouse(core.events.touch(param1, param2, param3))
         elseif event == "speaker_audio_empty" then
             -- handle speaker buffer emptied
             sounder.continue()
diff --git a/graphics/core.lua b/graphics/core.lua
index 98c8ed5..d03e551 100644
--- a/graphics/core.lua
+++ b/graphics/core.lua
@@ -10,20 +10,76 @@ core.flasher = flasher
 
 local events = {}
 
----@class monitor_touch
+---@enum click_type
+events.click_type = {
+    VIRTUAL = 0,
+    LEFT_BUTTON = 1,
+    RIGHT_BUTTON = 2,
+    MID_BUTTON = 3
+}
+
+---@class mouse_interaction
 ---@field monitor string
+---@field button integer
 ---@field x integer
 ---@field y integer
 
--- create a new touch event definition
+-- create a new monitor touch mouse interaction event
 ---@nodiscard
 ---@param monitor string
 ---@param x integer
 ---@param y integer
----@return monitor_touch
+---@return mouse_interaction
 function events.touch(monitor, x, y)
     return {
         monitor = monitor,
+        button = events.click_type.LEFT_BUTTON,
+        x = x,
+        y = y
+    }
+end
+
+-- create a new mouse click mouse interaction event
+---@nodiscard
+---@param button click_type
+---@param x integer
+---@param y integer
+---@return mouse_interaction
+function events.click(button, x, y)
+    return {
+        monitor = "terminal",
+        button = button,
+        x = x,
+        y = y
+    }
+end
+
+-- create a new transposed mouse interaction event using the event's monitor/button fields
+---@nodiscard
+---@param event mouse_interaction
+---@param new_x integer
+---@param new_y integer
+---@return mouse_interaction
+function events.mouse_transposed(event, new_x, new_y)
+    return {
+        monitor = event.monitor,
+        button = event.button,
+        x = new_x,
+        y = new_y
+    }
+end
+
+-- create a new generic mouse interaction event
+---@nodiscard
+---@param monitor string
+---@param button click_type
+---@param x integer
+---@param y integer
+---@return mouse_interaction
+function events.mouse_generic(monitor, button, x, y)
+    return {
+        monitor = monitor,
+        button = button,
         x = x,
         y = y
     }
diff --git a/graphics/element.lua b/graphics/element.lua
index 5636fd0..d9bc489 100644
--- a/graphics/element.lua
+++ b/graphics/element.lua
@@ -166,9 +166,9 @@ function element.new(args)
         self.bounds.y2 = self.position.y + f.h - 1
     end
 
-    -- handle a touch event
-    ---@param event table monitor_touch event
-    function protected.handle_touch(event)
+    -- handle a mouse event
+    ---@param event mouse_interaction mouse interaction event
+    function protected.handle_mouse(event)
     end
 
     -- handle data value changes
@@ -410,20 +410,20 @@ function element.new(args)
 
     -- FUNCTION CALLBACKS --
 
-    -- handle a monitor touch
-    ---@param event monitor_touch monitor touch event
-    function public.handle_touch(event)
+    -- handle a monitor touch or mouse click
+    ---@param event mouse_interaction mouse interaction event
+    function public.handle_mouse(event)
         local in_x = event.x >= self.bounds.x1 and event.x <= self.bounds.x2
         local in_y = event.y >= self.bounds.y1 and event.y <= self.bounds.y2
 
         if in_x and in_y then
-            local event_T = core.events.touch(event.monitor, (event.x - self.position.x) + 1, (event.y - self.position.y) + 1)
+            local event_T = core.events.mouse_transposed(event, (event.x - self.position.x) + 1, (event.y - self.position.y) + 1)
 
             -- handle the touch event, transformed into the window frame
-            protected.handle_touch(event_T)
+            protected.handle_mouse(event_T)
 
             -- pass on touch event to children
-            for _, val in pairs(self.children) do val.handle_touch(event_T) end
+            for _, val in pairs(self.children) do val.handle_mouse(event_T) end
         end
     end
 
diff --git a/graphics/elements/controls/hazard_button.lua b/graphics/elements/controls/hazard_button.lua
index 0b59df6..e9f2bf4 100644
--- a/graphics/elements/controls/hazard_button.lua
+++ b/graphics/elements/controls/hazard_button.lua
@@ -140,10 +140,10 @@ local function hazard_button(args)
         end
     end
 
-    -- handle touch
-    ---@param event monitor_touch monitor touch event
+    -- handle mouse interaction
+    ---@param event mouse_interaction mouse event
 ---@diagnostic disable-next-line: unused-local
-    function e.handle_touch(event)
+    function e.handle_mouse(event)
         if e.enabled then
             -- change text color to indicate clicked
             e.window.setTextColor(args.accent)
@@ -178,7 +178,7 @@ local function hazard_button(args)
     -- set the value (true simulates pressing the button)
     ---@param val boolean new value
     function e.set_value(val)
-        if val then e.handle_touch(core.events.touch("", 1, 1)) end
+        if val then e.handle_mouse(core.events.mouse_generic("", core.events.click_type.VIRTUAL, 1, 1)) end
     end
 
     -- show the button as disabled
diff --git a/graphics/elements/controls/multi_button.lua b/graphics/elements/controls/multi_button.lua
index 2cf583a..2549e2b 100644
--- a/graphics/elements/controls/multi_button.lua
+++ b/graphics/elements/controls/multi_button.lua
@@ -92,9 +92,10 @@ local function multi_button(args)
         end
     end
 
-    -- handle touch
-    ---@param event monitor_touch monitor touch event
-    function e.handle_touch(event)
+    -- handle mouse interaction
+    ---@param event mouse_interaction mouse event
+---@diagnostic disable-next-line: unused-local
+    function e.handle_mouse(event)
         -- determine what was pressed
         if e.enabled and event.y == 1 then
             for i = 1, #args.options do
diff --git a/graphics/elements/controls/push_button.lua b/graphics/elements/controls/push_button.lua
index 8cb89c9..d0c1299 100644
--- a/graphics/elements/controls/push_button.lua
+++ b/graphics/elements/controls/push_button.lua
@@ -8,7 +8,7 @@ local element = require("graphics.element")
 ---@class push_button_args
 ---@field text string button text
 ---@field callback function function to call on touch
----@field min_width? integer text length + 2 if omitted
+---@field min_width? integer text length if omitted
 ---@field active_fg_bg? cpair foreground/background colors when pressed
 ---@field dis_fg_bg? cpair foreground/background colors when disabled
 ---@field parent graphics_element
@@ -47,10 +47,10 @@ local function push_button(args)
         e.window.write(args.text)
     end
 
-    -- handle touch
-    ---@param event monitor_touch monitor touch event
+    -- handle mouse interaction
+    ---@param event mouse_interaction mouse event
 ---@diagnostic disable-next-line: unused-local
-    function e.handle_touch(event)
+    function e.handle_mouse(event)
         if e.enabled then
             if args.active_fg_bg ~= nil then
                 -- show as pressed
@@ -78,7 +78,7 @@ local function push_button(args)
     -- set the value (true simulates pressing the button)
     ---@param val boolean new value
     function e.set_value(val)
-        if val then e.handle_touch(core.events.touch("", 1, 1)) end
+        if val then e.handle_mouse(core.events.mouse_generic("", core.events.click_type.VIRTUAL, 1, 1)) end
     end
 
     -- show butten as enabled
diff --git a/graphics/elements/controls/radio_button.lua b/graphics/elements/controls/radio_button.lua
index 025cad1..3b2a593 100644
--- a/graphics/elements/controls/radio_button.lua
+++ b/graphics/elements/controls/radio_button.lua
@@ -79,9 +79,9 @@ local function radio_button(args)
         end
     end
 
-    -- handle touch
-    ---@param event monitor_touch monitor touch event
-    function e.handle_touch(event)
+    -- handle mouse interaction
+    ---@param event mouse_interaction mouse event
+    function e.handle_mouse(event)
         -- determine what was pressed
         if e.enabled then
             if args.options[event.y] ~= nil then
diff --git a/graphics/elements/controls/spinbox_numeric.lua b/graphics/elements/controls/spinbox_numeric.lua
index 088d847..ffbd1f8 100644
--- a/graphics/elements/controls/spinbox_numeric.lua
+++ b/graphics/elements/controls/spinbox_numeric.lua
@@ -127,9 +127,9 @@ local function spinbox(args)
     -- init with the default value
     show_num()
 
-    -- handle touch
-    ---@param event monitor_touch monitor touch event
-    function e.handle_touch(event)
+    -- handle mouse interaction
+    ---@param event mouse_interaction mouse event
+    function e.handle_mouse(event)
         -- only handle if on an increment or decrement arrow
         if e.enabled and event.x ~= dec_point_x then
             local idx = util.trinary(event.x > dec_point_x, event.x - 1, event.x)
diff --git a/graphics/elements/controls/switch_button.lua b/graphics/elements/controls/switch_button.lua
index bf138f2..133ea45 100644
--- a/graphics/elements/controls/switch_button.lua
+++ b/graphics/elements/controls/switch_button.lua
@@ -62,10 +62,10 @@ local function switch_button(args)
     -- initial draw
     draw_state()
 
-    -- handle touch
-    ---@param event monitor_touch monitor touch event
+    -- handle mouse interaction
+    ---@param event mouse_interaction mouse event
 ---@diagnostic disable-next-line: unused-local
-    function e.handle_touch(event)
+    function e.handle_mouse(event)
         if e.enabled then
             -- toggle state
             e.value = not e.value
diff --git a/reactor-plc/startup.lua b/reactor-plc/startup.lua
index 59c5ced..920877c 100644
--- a/reactor-plc/startup.lua
+++ b/reactor-plc/startup.lua
@@ -17,7 +17,7 @@ local plc      = require("reactor-plc.plc")
 local renderer = require("reactor-plc.renderer")
 local threads  = require("reactor-plc.threads")
 
-local R_PLC_VERSION = "v1.1.1"
+local R_PLC_VERSION = "v1.1.2"
 
 local print = util.print
 local println = util.println