Improve interface for navigating and using LR desktop using only the keyboard

I’m looking into Lightroom CC Desktop’s accessibility features for a friend of mine with a tremor, for whom using the mouse is difficult.

Preferences > Interface > Accessibility Mode > Keyboard Navigation

The above setting allows navigation throughout the program and adjusting sliders using keyboard keys. There are a few things that still need a mouse, such as non-AI masks – fair enough.

Con: Using the commands for navigation is surprisingly hard! There are no left/right arrow-type keys to move in and out of sub-menus or adjacent panels. When cycling through the panels, the outside edge should be highlighted – currently you have to look for the first contained item that is outlined. That is hard to spot. When tabbing through things, some items are accessed out of order or it’s confusing due to the layout of panels and subpanels. I haven’t figured out how to reset a slider. When there is a pop-up menu, the outlines are below the pop-up. I find the focus selection method particularly unintuitive. Tabbing through Mask adjustments is hard/impossible? – like going from >Light to >Color. Keyboard navigation is not documented as far as I can tell, other than a small pop-up in the preferences.

Pro: this method uses very few keyboard shortcuts, so you don’t have to remember the Lightrooms’s every single shortcut. It is a good number for an ordinary game controller ‘s buttons to be assigned to keyboard shortcuts. Using a controller is easier to use than a keyboard for people with bad tremors. I’m using InputConfig on a Mac to assign shortcut commands to the game controller’s buttons and paddles. A game controller is much cheaper and simpler than a dedicated image editing controller (so may be of interest to regular power users who will still use their mice for masks, etc.). Using a general mapping program such as InputConfig, which maps the Mac keyboard directly to the game controller, allows the user the option of making personalized mapping presets. BTW, InputConfig is free and open source.