My goal is to get a calculated reserved command variable. 

With RBT013 i can only calculate the days, but i also want to change the year and month.

For example i want a reserved command variable that is 2021-08-01 the first of the month and 3 month ahead from today.

And i also want for example 2013-05-01 to use for deleting records older than 8 years.

Do i need to program my own solution or is it possible with Robot Schedule 13 today?