Hierachical chunk groups

[shiukaheng]

It would be great to have the ability to group chunks together, which would be particularly useful in large reconstruction projects where smaller chunks are initially aligned, then merged together. Better yet, it would be great to also have the ability to align these super-chunks together.

[Damian]

It has also one more advantage. We have several projects in which every month we generate trueorthomosaic, digital terrain model and differential models from same construction site. So far I group chunks by date e.g:

2020-03_trueortho_dsm
2020-03_dtm
2020-03-2020-02_difference
2020-04_trueortho_dsm
2020-04_dtm
2020-04-2020-03_difference
etc.

It would be much easier just to see it that way:
+2020-02
-2020-03
     trueortho_dsm
     dtm
     difference
+2020-04
+2020-05

I realize that I can store several dems in one chunk, but it does not satisfy me.  @Alexey, do you plan to intoduce it to us with upcoming upgrade ?