is there any document that tells how many tab groups you can create in tabox?

Hey there! When you save a collection in Tabox it works like a bookmark. As long as you keep the window you just saved open, the tabs will continue to work as they always have. You can close the window but Tabox does not keep the tabs in memory. When opening a saved collection, by default Tabox discards all tabs (except pinned and the active tab) so they do not take much resources. Only by clicking a tab? Tabox will restore the tab to its normal operations. You can also disable this option in the settings menu, making it so opening a collection will load all tabs. Hope this helps!