Snapshot entire viewport, with selected layers and objects.

Hi, I'm trying to snapshot the entire viewport with only a few selected layers and objects, in an interval duration.

And then loading it, and resized in a smaller scale. Hence, a minimap.

I'm trying to figure out how I would do that through extending the Drawing Canvas object, or do I need to make a separate addon for it?

Also, if I were to have to make a separate addon for it, how would I approach that? Thanks.

Check out this (it has many limitations, but if the fates allow, maybe it will work for you :) )

construct.net/en/forum/construct-3/plugin-sdk-10/copy-effect-143743

It depends on render order, so if you place it on a certain layer it will copy everything under that layer (rendered before it.)