Any Automatic Multi-tile Packing script or plugin?


Hey all…
Do any of you know any way to do a multi tile or udim pack in maya or modo?
I have a really big scene, i have created the uvs to a point where im satisfied but making manual packing so that the uvs have a proportional size would take way too much time and using packing or layout dont let me hace control over the tiles i want to work with.*

so does anyone know a script (maya / modo) or a standalone app that is able to put my uv´s in a usable udim layout?*
Or maybe just a way to be able to work with several tiles (udims)…