This documents contains the list of functions available in the ETL object of BOARD.
Is it possible to write my own ETL functions and reference them in layout blocks? If so, how can I do that?
In particular, I would like to write variants of the lending calculations to support customized interest and payment calculations over time.
it's not possible to use ETL formulas in layouts block - but you can use nexel: Nexel Complete Formulae library
it is a very powerful excel-like calc scripting engine integrated in BOARD Layouts!
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