Hey there! One of the main things I do with Pyxel is create animations and export them as sprite sheets. I often wind up exporting several animations at a time, and often, they have the same intended file name as the Animation itself, like you see in this example:

It'd be really great if there was a checkbox on this interface which, when checked, automatically used the animation name as the contents of the "file name," so that I didn't need to rewrite the filename each time I pick a new anim from the dropdown menu.
The user could still edit the field; it simply updates it automatically each time a new animation is picked from the dropdown, regardless of the field's current contents.
If left unchecked, the field doesn't automatically update at all.
Thanks much for your hard work!