I have a suggestion after pulling my hair out dealing with tile sheets from paid sources such as itch.io in Fusion 2.5. I've even tried to build myself a tool to slice sheets myself using the surface object, though the current state of my tool is too buggy to release or even use right now. (If I ever wrangle the tool into usable order, I'll probably share it to itch.io or some such, but it's still silly to need such a tool in the first place when other engines, including heavy competition for Fusion, support and understand tileset sheets out of the box.)
Can we have an option/tool in Fusion for importing a tile sheet as a set of backdrop objects?
Basically, I want to have something that combines the "dragging multiple png files to import the objects into fusion" feature, and the active object editors "import frames from a sprite sheet". So it would act like follows:
1. User selects to import a tile sheet. This could be asked on drag and drop import, or a special right click option, or even buried in the frame editor menus if you want.
2. Select the png file to bring in.
3. Interface for "frames" comes up like when importing an animation, input the width and height of the tiles and Fusion will slice the imported png into images for you.
4. Possibly a prompt for asking if the user wants actives, backdrops, or quick backdrops as the result. (The other options could be useful depending on what the user wants the tool for.)
5. Add an option to Spread out the "imported objects" into a grid, with width and height specified. Or with the original tile sheet calculated amount of tiles.
6. Fusion spits out all the new objects just like when importing a series of images in the current build. It will also arrange the objects as specified, instead of stacking them all at the same spot in the frame.
Having jumped from tool to tool, it's very annoying how behind Fusion is when it comes to using tile sheets. If the editor could do this, a lot more tile sheets could be used without needing to code our own entire tile display engines. After all, coding our own tile scrolling engine and storing all the levels out in external files really defeats the whole purpose of having a frame editor in the first place.
If money is the problem, I'd even pay a few bucks for DLC that does this in editor. It's really become a problem for me as time goes on, and is often the main reason I drop Fusion in favor of other engines. Please consider it!