My video lasted longer than the music I had selected for it. I would love that music played in Loop for these cases!

Able to add transparency background to the Animated Logos

a red flag saying "this design has realy been used or similar to my design" that would be very helpful

numbered system and a grid when adjusting the design you upload so that I can maintain the exact same size and location

Editing options to decide what graphics to send to the background or the foreground would be helpful. Like:
Send to Back
Bring to Front
Send Backward
Bring Forward

Currently, there is a button to upload logos on mockups, this button currently uploads logos on top of the image mockup. Allow logos to be placed inside the mockup and not on top of the image itself.

Ability to upload music, audio and/or voiceovers on Videos

remove text limit gets annoying on certain designs the text bar limit is for example is 2 and you cant add anymore text fields

Similar to the gamer and team logos but text only.
I know that you can turn off the image, but many of the multiple line texts don't show properly when you turn off the image so it would be useful to have the following tools:
-Font size
-Letter spacing
-Alignment
-Angle
-Outline
-Curve

An uploads library where artwork I upload is stored on site. Right now if I am making multiple mock ups using the same artwork I have to upload that file from my computer everything single time. It would be nice if I wouldn't have to keep doing that.

Ability to reset the colors selected on Background and T-shirt color

In Adobe Illustrator if we move objects vertically while pressing Shift the object will not move left or right, just vertically.
Same while moving horizontally and pressing Shift: the object will not change its vertical position, it will move just horizontally
This feature will be so useful here too!

It would be great to have a specific apparel brand filter from your Mockups (from the yazbek, gildan and Bella n Canvas that are usually used) It will help a lot for my mockups!

The option to create folders and subfolders in the Downloads and Bookmarks/Favorites sections to have them more organized.

In addition to this, the ability to sort those folders by name, date, etc. would also be extremely helpful.

Be great if you can upload your own logos and png images and get the same animation effects!

was wondering if there was a place i could just browse the artwork available for shirts instead of in that small window in the designer

I think my main issue is mainly the templates that you can use have a very limited spaces to “upload pictures” so for example some templates only have 3 import options meaning I can only import/use 3 pictures which limits me, so what I have to do is download the picture, re open it delete it all then open that file I downloaded so then I have 2 spots to add more designs

Having a "Starter/Blank/Master Template" where all image options and fonts from Smart templates are included

would like to see and API or website integration option in the future.