Timer: make repeated clicks on timespan additive
What I mean is that for every click on one of the pre-determined buttons, it'll increase the timer by that amount over and over again. So if you click on "5 minutes" twice, it'll add 2x 5 = 10min to the timer. It'd be quicker to use that way.
You also wouldn't need as many buttons. Maybe just 3min, 5min, 15min, 45min because clicking 2x5min would already be 10min and so on…
The +1min and +1h are especially redundant since those are already available via the spinner inputs for hours/minutes/seconds below the pre-select buttons.
Edited by DanMan