Structure types: these are the structure types that are tagged using Transkriubs on region level. Do not use whitespace in those structure types and be careful with case sensitivity.
Merged structure types: if you want to treat certain structure types like other (e.g. footnote-continued or footer like footnote) then you can specify that here. Expected is a list of the structure types where other are merge into, separated by a colon, e.g.: 'footnote:footnote-continued,footer heading:header' whould mean that 'footnote-continue' and 'footnote' are regarded as 'footnote' while 'header' is regarded as 'heading'
for more information on P2PaLA, see also: https://transkribus.eu/wiki/index.php?title=P2PaLA