1. Unlock crop from source

There are times when it's useful to be able to constrain a source to a portion of screen via cropping or masking. At present the crop function is locked to the source. Move the source in X, Y or Z and the crop moves with it.

It would be great to be able to unlock the crop position from the source. That way the crop tools could define a fixed window and the source repositioned within that window.

2. Mask vs Crop

There are times when a simple rectangular crop is not appropriate so we used a mask image. At present this has to be setup using the luminance key function, which is somewhat indirect. It would be preferable to be able to do this in a separate mask function, perhaps located with the crop function. Since mask is basically a more evolved crop.

3. Unlock mask from source

The mask should be able to be unlocked from the position of the fill source.

4. Invert

It would be great to have a simple way to invert a mask or crop setting.