I have a need to put Delta Notes in drawing notes and so far I am getting round the issue by placing triangular balloons behind the note numbers, please see the attached image. This has obvious recurring issues in that they move around seperately to the actual notes and grouping brings about some very strange alignment issues. This solution is workable, although a bit of a 'faff'.
Does anyone know of another way round this issue? Obvioulsy not all numbered notes require Delta's, so any solution would need to be applied on a note by note basis.