Disclaimer: I make no promises that this plugin will be compatible with other plugins and, as of now, can not offer plugin support. Use as is. Made for RPGMaker 1.6.2
This is an RPG Maker MV plugin I created for my own project that may come in handy for others. Combined with other plugins I use it to create picture select choices like below:
I place this plugin underneath all other plugins.
A plug and play script that allows the left and right arrow keys to scroll through up/down menus, such as vertical choice lists and main menus.