Sadly the forum does not support duplicating a post so here the original comment by @JeffYoung that i moved to its own thread as it sparked a discussion.
Text variables are in. They are defined per project and can be used in fields, schematic and board text, output paths, etc.
Referenced as you might expect: ${var-name} .
The existing % escapes (worksheet fields, %R and %V , etc.) were also moved to the new architecture. So, for instance ${VALUE} now gets you the symbol’s value. The set of system variables was also expanded.
System variables for symbol text: REFERENCEVALUEFOOTPRINTFOOTPRINT_LIBRARYFOOTPRINT_NAMEDATASHEETUNIT
System variables for sheet text: SHEETNAMESHEETFILENAME
System variables for module text: REFERENCEVALUELAYER
System variables for PCB text: LAYER
System variables for worksheet text: KICAD_VERSION# (sheet number)## (sheet count)SHEETNAMEFILENAMEPAPERLAYERISSUE_DATEREVISIONTITLECOMPANYCOMMENT0 , COMMENT1 … COMMENT9
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