FR: Step-up frequency and Day choice for SIPs

Hi!
Feature #1:
Currently step-up of any SIP via Coin is limited to yearly step-ups. Is there a specific reason why this was limited to yearly frequency? Monthly, Quarterly or Bi-annual step-ups ought to be available.

Feature #2:
Weekly SIPs do not provide an option to modify the choice of day (the day you started that SIP is the day allocated for you as long as the SIP is active). Currently to shift from a Wednesday cycle to a Monday cycle, say, one has to cancel a SIP and restart another. Would be easier and efficient to allow the choice of a weekday to users.