Maintenance Page for VIP with Policies

Hello, We host a F5 VIP for multiple applications through a policy. We have approx 25 applications and route traffic to different pools based on the http-host request of that app and forward it to their pool. We host a shared environment and looking for ways to enable maintenance page for a specific application when it is unavailable. In simple terms, if the response time of our shared environment is impacted caused by on of the applications and to avoid impacting other applications we force offline the member in the pool which gives end users a 404. Instead of a 404, can we enable a maintenance page for the specific pool which I disabled the member, so that end users see the maintenance page instead of a 404.

Can this be accomplished with an ifile and at the pool members?

Thanks in advance !!