Making multiple words into one TAG (Filename-Tag)

Support
2

Use these actions for question 1:

Action #1:
Action type: Guess values
Source format: %_filename%
Guessing pattern: %artist% - %title%

Action #2:
Action type: Format value
Field: DISCNUMBER
Formatstring: $mid(%_filename%,$sub($len(%_filename%),4),2)

Action #3:
Action type: Format value
Field: TRACK
Formatstring: $mid(%_filename%,$sub($len(%_filename%),1),2)

Action #4:
Action type: Replace with regular expression
Field: TITLE
Regular expression: D\d{2}_\d{2}$
Replace matches with:

[ ] case-sensitive comparison