It is not entirely clear to me if this intended as a feature request or bug report?
Maybe you want to request and suggest the possibility in "Key definitions & WinLIRC" to (re)define different but also
separate keys for the point-A-marker and the point-B-marker? (Presently only the joint "R"-key can be redefined for both points A ànd B.) Is that your intention? Or is there some non-working option?
Please confirm.