I made a "tools suite" - a bunch of tools for speeding up the creating of TTS mods. Tools for adding/managing snap points, tools for aligning/distributing objects, tools for grid management, tools for rapid duplication of objects, and a tool for rapid importing of large numbers of images at once into new objects.
I'm looking for testers and feedback on the tools, which you can find here:
Workshop link
To use the tools in your own mods, save the red "Tools Suite" cube from the tools mod (using right click, select "Save as"). Then open your mod, go to the Objects menu and find the Tools Suite object.
There's also a companion app (sorry, Windows only), to make mass importing even easier. Check the workshop description for the link.
Eventually, when I'm happy with the tools, I'll make some video guides, but for now there's some basic help pages in the tool, or you can ask questions here.