Best way to skip an inner loop?

Online experiments
1

Description of the problem:

I am using the Builder and I have one big outer loop that only loops twice and several inner loops with trails as below:

[inner loop1] [inner loop2] [inner loop3]

I am struggling to find an easy way to show inner loops 1 and 2 twice (as controlled by the outer loop) and ONLY show the inner loop3 once. What’s the best way to SKIP inner loop 3 if it has already been completed? I know I can use a counter, but that still adds two iterations of inner loop 3 to my data file.

Apologies if this is a really straightforward answer (I suspect it is). But I’ve been poking around and haven’t been able to implement an easy solution…

Thanks in advance!

2

You could point the outer loop at a spreadsheet with two columns called Twice (containing 1 1) and Once (containing 1 0) and use $Twice for the nReps for your first two inner loops and $Once for the third.

Offhand I can’t remember if the $ is necessary.