Yes, that does sound like it would be a nice addition to play with. Out of interest, I would imagine external CTCSS decoders are available to be fed by VAC?
Ah yes, a quick Google and here is one, although agree would be nice to have an integrated feature in SDRC I agree.
http://www2.plala.or.jp/hikokibiyori/so ... index.html
https://forums.radioreference.com/threa ... re.385194/
(Google Translate needed for the text of the main site of course)
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Max