Pattern projection with Bonvision

[D-e-e-k-s-h-a-1]

Hello everyone! I am relatively new to bonvision, and am trying to project patterns on dishes. So this is the basic idea- I've divided the screen into multiple viewports and projected gratings of different dimensions on them. I've also managed to shift these gratings clockwise with a timer and delay node. Although it looks great for a single projection, I would assume this to be a complete nightmare if I have to project the same pattern on multiple dishes. I would have to change the coordinates for each viewport according to the ROI file manually. Does anyone happen to have some suggestions for this? I am currently testing around with attaching the workflow output to a custom script that can recognize the ROIs and project patterns, but if there is a simpler solution to this, I would really appreciate it!