Enter time based intervals?

[david]

Just fixed this issue and made other improvements:

Interval editing improvements

You can now have intervals that are right next to each other with no recovery interval in between. You can also split(S), merge(M) or delete(D) the interval at the marker position using keyboard keys or by clicking the button. Merging an interval merges it with the work interval on the right hand side. [Screen Shot 2021-06-25 at 09.11.13] Split with S to make 3 intervals: [Screen Shot 2021-06-25 at 09.11.33] Delete middle one with D: [Screen Shot 2021-06-25 at 09.11.55] Merge on left in…