So if you currently have an IPSEC tunnel allowing 10.10.10.10 to remote host 20.20.20.20 and need to allow more hosts to access 20.20.20.20.
Would natting lets say the additional hosts you want allow let's say 50.50.50.50 from Inside interface to 10.10.10.10 anytime the destination is 20.20.20.20 cause any current tunnel connection issues?