I’ve been working with TT now for about 6 years, and I love this app so much! I use TT in a maybe odd way, in that I almost never draw with it - I do image collaging, using jpgs and especially pngs. Over the years, I gathered a number of questions, and I’m finally getting around to posing/sharing them…
Here are a few features that I would love to see in TT, but of course know that I am not the one working the software 
…
a) Ability to play music off the iPad while using TT - right now I have an iPod or other iPad playing music, and it’d be nice to be able to use just one device
b) Ability to insert more than 1 image at a time from the Photos app - being an image collagist, I often use hundreds of images in one event design with TT. Being able to select several images at a time would save me a lot of time, scrolling through the Photos app
c) Ability to have some number of different drawing “brushes”. I feel that the single style of painting “brush” limits the variety of artistic styles individuals might bring to their work
d) move the “Full Screen” button away from the “Delete” button!
e) a “shadow grid” - I wonder if there would be a way to create the image of a grid on the workspace that is only visible within the app, not projected in the output? I have a work around where I paint little white dots just outside the corners of the workspace, and save that layer along with whatever content I have in the animation I’ve created, so that it’s easier to line up when I drag it out of the Decks bar on the right of the screen.
f) the Background feature doesn’t seem to be working for me anymore? I see it in TT, but it’s not getting projected. I currently use iPad Pro 4th gen, iPad Air 5th gen, and iPad 9th gen.
g) in the “Interface” tab, what does “UI” stand for on “UI External Display”?
h) what is “Start NDI Server”, and why would one choose to use it?
i) Is there any way to know for certain how much data (content/images/animations) can be input before TT crashes? Is there a way to get an alert as to when a crash is imminent, like the alert that says “Please reduce the number of layers”? For now I run through all my animations for whatever show or event I’m working on, and try to note at what point TT crashes, so I can plan accordingly, and space out the amount of content I input during a show/event.
I think that’s it!
TT has allowed me to work solely as an artist, giving up my supplemental food service job during the pandemic, and work solely in artistic jobs, and I am forever grateful for this affordable and wonderful tool!