Okay, so I’ve got a few to be implemented in the next “large” update after the Sprite Update.

First off, I want to bump a few suggestions from other users forward:
-Inverse Kinematics (Suggested by MelodyMuse)
-Polyfill Layering (Suggested by Downwardghostly)
-Smart Stretch Scale (Suggested by MelodyMuse)
-Temporarily Turning Off Segments (Suggested by noobish)
-File folders (Suggested by ely)
-More than one guide on each axis (Suggested by Downwardghostly)
-Favourite Files (Suggested by Axel_StickNodes)
-After Images Filter (Kinda suggested by Unreal)
-Auto Figure (Suggested by Melon Lord)
I have attached an image file that contains the full messages for each of these suggestions, in order.

Now, the second thing I thought of, and this one is to conserve memory. In the app’s settings, there should be an option to turn on, well, “Duplicate Figure Checking” (Could probably use a name change). Turning this on would give the user a warning (“This may cause bugs and possibly crashes, and may also break your movieclip imports. It will also make it take far longer to import movieclips.” or something), and what it would do is, when importing a movieclip, it will go through each stickfigure file of the movieclip, and check if any of them are identical to a file already in the project. If so, it will use the file already in the project. That way, when importing multiple movieclips of the same character/figure, your library will go from this:

To this: