Calendar - setting reminder as a default to say 15 mins

hi…is there any way you can set the calendar to a default reminder time?

this is planned - it will be implemented in one of the next updates.

+1 for this feature.

Any timescale for this being introduced?

I am not sure, I have to ask our developers first …
Most probably it will be present in the upcoming version 6. You can expect it in 3 months.