Group by quarter hourly

[yornola]

Any idea on implementing also quarter-hourly or how to achieve it.

got it implemented but it just updates to a span of 15min when you watching it.

What I want: 4 fixed blocks in 1 hour (00-15, 15-30, 30-45 and 45-00)

What it is now: 4 blocks in 1 hour from when you watch so now it’s 22:37 is see a block 22:37-22:53 and so on

[akloeckner]

see #833. That's how it could be done here.