Like everyone is saying, without knowing your experience level we obviously don't want you flying a drone indoors on manual....... of flying a drone at all..... how do you feel about kites?I do understand that you're not saying these things to be d*cks, no worries, it is all appreciated....alright, most of it is appreciated. And as for your last comment about you being a handsome bastard with huge junk? Just keep in mind that beauty is in the eye of the beholder and "huge" is a relative term. Lol

You have a fine collection of RC planes there, I'm sure they all have varying degree's of handling too. So practice lots with the solo in Manual mode before taking up indoor flying. Again, just don't want to see someone's eye ball sliced open with intraocular fluid seeping out and mixing with blood as they lie screaming on the ground in pain............ which reminds me, I haven't had breakfast yet.
Well, it's been a laugh, hope to do this again sometime.

By the way, GPS loss will result in your drone defaulting to manual mode, but the reason to have a button dedicated to manual is in the event of GPS ghosting which results in erratic behavior and handling of the drone without putting the drone into manual mode (the mythic "flyaway")(mythic because drone's rarely fly away and it's usually an operator error).
ANYWAY.... good luck!
And you're right, size is comparative and my junk is MASSIVE when comparing it to a Aerix VIDIUS drone.......