Hi @steffen_KNIME ,
as I mentioned in the beginning of the thread, the "Table to String” and “String to Table” nodes. I think I also used the “String to Molecule” node at some point, but “Molecule Type Cast” from the standard chemistry nodes does something similar.
It goes a bit against Knime’s “reproducibility guarantee” philosophy if packages simply vanish without warning when upgrading to a new Knime version, even though it is “just” a point update. This is what the Knime website tells me when I try to download an older version of Knime:
Best,
Aswin
p.s. The "Table to String” and “String to Table” nodes may also be of interest to the people of this other recent thread, because these nodes allow a table to be stored in a string flow variable.