Absolutely.
Go into your plugin manager and edit LeTBS_Commands
Using my below, my current default command list is:
move 82, [extra], skills 64, items 176, pass 84
To remove items, all that's needed is to make it:
move 82, [extra], skills 64, pass 84
View attachment 81667
Now, if you only want to remove it for a specific character, place the following notetags Under the actors <letbs> tags:
<letbs_commands>
move 82, [extra], skills 64, pass 84
</letbs_commands>
So this will make the character only able to use move, the extra menu, skills and pass.
My Extra menu is generated by weapons as I replaced my attack command with individual weapon commands, to give each weapon a scope, aoe, etc.