Automatic resize of color selection (rectangle) feature

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Following point:
I made a color mapping for 4 Beam Moving Heads.
Initial the selection is sized automatic perferct so that all 4 Beam moving heads are selected.
But if I then move the moving heads in the plot (as shown below) these are then not included in the initial automated made rectangle.
It would be nice to have a button available that automaticly resize the rectangle so that all selected moving heads are included again.
(it is very time consuming making this manually for each scene).
would be a great feature

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resize color mapping selection.png (163.03 KiB) Viewed 12 times