In order to simplify workflow I think it would be great to have an additional option in “CD Metadata” to “Copy to All Titles”.
When using Variable code(s)/same info for all tracks it would be so much easier to just have to click once in order to copy info to all Tracks/Titles, instead of having to go through track by track.
FWIW, you can use a Metadata Preset to do this, and you can have that Metadata Preset pre-loaded into your default montage template (and any other montage templates) so that you never even have to think about this.
Just enter the info as CD-Text and the info is automatically transposed to metadata when rendering WAV or mp3 files of each album track.
But I also use CD Custom Data for Album and Tracks as Auto Variables a lot in my Naming Schemes when rendering files! And for that to work I always have to populate these fields when adding or renaming files or changing info etc.