Traffic shaping inside openvpn

[kiteman]

On Pfsense 2.4.4, I'm trying to shape traffic (based on tcp ports) inside openvpn coming to lan and set it on out wan interface queue (to prioritize rds for example). I can't figure out how to do it. Note that I've already read this topic : https://forum.netgate.com/topic/111460/openvpn-interface-under-traffic-shaper-pfsense-v2-3-4/2 and I can understand that paquets tagged on floating rules (on lan openvpn interface) based on traffic within openvpn don't match wan interface queue. Do you think there can be a solution to this issue ? The goal is to shape traffic withinopenvpn on both ways in and out

Thank you