keep several pane contents' checkpoints

[Inilien]

It would be nice if capture pane contents feature stored several checkpoints and not just the last one.

I am using tmux-continuum with

set -g @continuum-restore 'on'  
set -g @continuum-boot 'on'  

and for some reason after booting up my PC tmux server had started with single empty window and no restoration of previous session took place.
After 15 minutes tmux-continuum saved new session (with single empty window) and rewrote all pane contents' saved data.
I was able to restore my windows from previous checkpoints using faq but pane contents were lost.