Bbtt trig decorator alg
Based on !500 (merged), should be merged after !511 (closed), although it containts the changes from !511 (closed), too. To fully function, it needs atlas/athena!69115 (merged) to be implemented and an ahtena verision that includes this MR.
I open this MR to discuss and debug already as a draft.
Edited by Philipp Rincke