Thx for your reply - I took time today to go through some of your DP’s - and they are great. Especially basics like Design Pattern: How to Structure a Rule will have me rework my rules.
Regarding my aimed for recursive & parameterized timer (variable duration multiplied by number of repetitions), I think that something building up on your example above is still a valid option.
The looping timer would have no (easy) way of counting the repetitions (to increase the duration of the next timer), the cascading timer doesn’t seem to fit my scenario.
On the other hand it might be possible to avoid a lambda function if I use a second map to keep count of the repetitions for each timer…
Once again - thx for your help and your great DPs - and lets see what I can use from the different DPs to build a custom solution for my problem 