Hey Bearguy, thanks for this! I like seeing videos of the game, it's more natural than typed text. I noticed that you missed a few mechanics in the game, or you chose to ignore them (like, you kept a dead mon in the party where it can't heal) so I might need to work on the clarity of some mechanics, or straight up introduce a tutorial.
Regarding the party box deactivation, there's already a little bit of feedback when you try to move them during battle - the cursor changes to a red X, you can even see it in the video. It's probably too small though, so I'll try making it bigger, but graying out the boxes will help with clarity too, so I'll probably do that.
Thanks for playing!