Hola…
Whilst not a dedicated renoise tip-app it is certainly HANDY for ALL TRACKERS…
I have found it a real handy app for REBIRTH…To keep track of blocks-progress…
It is a Text Editor for Musicians…There was a commercial & a freeware…
This is the freeware & actually has all that I need…
Info page on the wayback here-
https://web.archive.org/web/20071228163944/http://www.mymusicsoft.com/index.php?item=transposer
Direct DL Link here-
https://web.archive.org/web/20070305092619/http://mymusicsoft.com/files/transp21.zip