No. 2 Question … nope
all other questions … rename the *.bundle pack to the *.zip … and unzip it and you’ll find all the images used in the moviesheets that you can replace or remove.
once done editing … re-zip it (at root level … no compression [aka.store] ) then rename it back to *.bundle and import it into Thumbgen.
P.S. please check your Personal Messages thanks.