the text highlighting menu just provides a couple of pre-defined regular expressions. You can set/configure multiple connections with the predefined expressions and or custom expressions using the bulk-edit feature:
Let me know if this helps.
good to know that the Bulk-Edit works there too (i always seem to forget about the Bulk-Edit)
however in my use-case, this helps me only partwise.
I use multiple Documents that cannot be merged, and the Bulk-Edit doesn't work across multiple Documents.
And copy/pasting 80 Text Hightlighting Rules seems rather boring over multiple Documents
the next release includes basic import/export functionality for text highlighting rules.