It would be good to have a dynamic label type (ideally that can be addressed by MCU protocol messages).
One example is mixer scribble strips, but I'm also thinking about preset names for synths, error messages, prompts...
This is the format for the Behringer X-Touch, which serves as an example:
0xF0 x"00 00 66 14" x"12 00"
"ChannelChannelChannelChannelChannelChannelChannelChannel"
0xF7
0xF0 x"00 00 66 14" x"12 38"
" 01 02 03 04 05 06 07 08 "
0xF7
(The 38 is the text position offset)