Please see my reply below:
Question, how can I change the labels on the advanced search?
Example: Instead of the default “Min Tyoe Room”, I want ” min. bedrooms”
I did try to play in the “theme options” under “advanced search” menu, but could not figure it out.
–> The way you can change fields in Advanced Search is with Advanced Search custom.
If the help is not clear enough, send me your wp-admin and what search fields you need to show.
Also, the advanced search only searches our manually entered properties or does it also search through the idx listings?
–> Only manually entered properties. IDX doesn’t give access to their database. No plugin for IDX offers access.