This is likely going to be a very rudimentary sounding question, but here goes.....

Is there a quick and efficient way of determining the repetition number of the next available(empty) repetition in a repeating field?

I'd settle for being able to determine the number of repetitions a field is defined to have.

I make a point of not using repeating fields for the most part, but they do have their uses.

GetAsNumber ( FieldType ( Get ( FileName ) ; "YourRepeatingField" ) )

returns the max number of the repetitions definited for YourRepeatingField

( note that that field may show a minor number of repetitions )

For the last not empty repetition, see if this helps

Nice! That will do.

I make a point of not using repeating fields for the most part, but they do have their uses.

True, but nowhere where the user might enter anything though!

--sd

Agreed!