Trying to fill in the gaps

Glad to help

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Originally Posted by martindwilson

ok a udf use as =unconcat(a1,b1)

I have ; separator with functions but I'm not sure how I have to use them when dealing with custom functions. I cannot get this working and I've tried all four considerable alternatives: a) , at cell and at code, b) ; at cell and at code, c) ; at cell and , at code, d) , at cell and ; at code.

Any advices?