Select and move many bboxes

[milanziuziakowski]

My actions before raising this issue

• Read/searched the docs
• Searched past issues

Find some issues that described there's currently no such feature, but it would be very helpful for annotating multi-bboxes images

Expected Behaviour

I'd like to select and move many bboxes over a given image.

Current Behaviour

When I use bbox tracking to new frames I have to move all of bboxes like in below image. Right now I need to select and move all bboxes one by one.

Possible Solution

Give an ability to select many bboxes with a cursor and move all of them by one move

Context

I have to annotate over 100 objects on an image. It would save a lot of time to have an ability to move many of them.
Anyway, the tool is amazing and I'm thankful for your contribution.

[bsekachev]

Dublicate for #2340