Can someone help edit this formula?

[dkals]

Hi! Below you'll find two screenshots - one is the template I started with and the other is the base I'd like to implement the reoccuring tasks formula/automation:

The OG formula is too long to allow me to copy the entire thing in. This is the template: https://airtable.com/appcm1NtFWzs7vnnM/tblE0zWlg5lUgvbFU/viwOzsxF54gJeKpdS?blocks=hide

the formula is under the Next Due Date column

Can someone edit the formula to remove all of the options except for monthly reoccuring tasks? I don't need the 'Days (Only if Set to 1 Day(s))' column or any other recur units beyond Month(s). I've tried removing parts, but then the formula doesn't create the Next Due Date. 

[TheTimeSavingCo]

Hmm, that link doesn't provide access to the formula I'm afraid

[Alexey_Gusev]

Hi,
You can use this formula for past Due Dates, it uses any Recur Interval and Unit except it Ignored weekdays column. But I don't quite sure how it supposed to work with future Due Dates (I need example of input/output to do it), so you can improve it, if needed.

IF({Recur Interval},DATEADD({Due Date},
 {Recur Interval}*ROUNDUP((1+DATETIME_DIFF(TODAY(),{Due Date},
 LEFT({Recur Unit},-1+FIND('(',{Recur Unit}))))/{Recur Interval},0),  
 LEFT({Recur Unit},-1+FIND('(',{Recur Unit})) ))