Standard Action 'PROMPT' missing in NW 7.3 SP11

Hi All,

After Migrating Visual composer from NW 7.3 SP09 to NW 7.3 SP11, we noticed that action 'PROMPT' is missing in the standard action list .  Standard action 'PROMPT' was used along with other actions (while clicking on a button), which was available in earlier SP. 

After migrating to SP11, existing prompt actions are working perfectly during run-time, but I am unable to add a new PROMPT action while designing/changing a VC model.

NW 7.3 SP09

NW 7.3 SP11

Had anyone faced this problem ? Is there any SAP Note/patch to resolve this issue ?

Thanks & Regards,

Vinod