Manjaro (Linux) mousewheel zoom possible?

[Ofnuts]

In the "Main mouse wheel" section, if you change (debug-events no) into (debug-events yes), and then start Gimp in a terminal, you should have an inking of what is going on:

Code:

Received 'Mouse Wheel Events' (class 'Mouse Wheel')
   controller event 'scroll-down-control (Scroll Down (Ctrl))'
   (trigger event)
   doesn't map to action

Received 'Mouse Wheel Events' (class 'Mouse Wheel')
   controller event 'scroll-up-shift-control (Scroll Up (Shift+Ctrl))'
   (trigger event)
   maps to action 'tools-paint-brush-size-increase-skip'
   action was found

Received 'Mouse Wheel Events' (class 'Mouse Wheel')
   controller event 'scroll-down-shift-control (Scroll Down (Shift+Ctrl))'
   (trigger event)
   maps to action 'tools-paint-brush-size-decrease-skip'
   action was found

Received 'Mouse Wheel Events' (class 'Mouse Wheel')
   controller event 'scroll-down-shift-control (Scroll Down (Shift+Ctrl))'
   (trigger event)
   maps to action 'tools-paint-brush-size-decrease-skip'
   action was found

Received 'Mouse Wheel Events' (class 'Mouse Wheel')
   controller event 'scroll-down-shift-control (Scroll Down (Shift+Ctrl))'
   (trigger event)
   maps to action 'tools-paint-brush-size-decrease-skip'
   action was found

Above is for my settings of course, your output would be different.