[IDA] Adding struct information?

[Tanaris4]

Probably a VERY simple question, but how are people adding struct info to their idb files in between patches? Is there a .idc script I've been missing?

i.e. changing this function (mac):


to this one (windows provided in the offset thread):


Thanks!

[jjaa]

Import the struct types from a header file, then type stuff manually.