in yast2, would it be possible to change the layout in sysconfig editor to be able to choose what days the btrfs maintenance takes place on, for eg. 1. if you have set scrub for once a month, might be a good idea to include an option to select the first monday of each month and so on. 2. for balance for once a week, be able to select the day that takes place on, for eg. every monday of every week