What are you trying to do?

placeholder from playtime plugin

What have you tried so far?

I have papi (they support it) I downloaded holographic placeholders addon. How can I use papa placeholders with hd?

Platform

• Server version (output of /version): 1.16.3 and latest spigot
• Holographic Displays version (check with /hd): 2.4.4
• ProtocolLib version, if installed (check with /protocol version): 4.6.0
• Do you use plugins to allow players to join with multiple Minecraft versions (such as ViaVersion, ProtocolSupport, ...): yes, viaversion

Additional context

no

Sorry but you need to ask the developer of that addon. PlaceholderAPI is not yet officially supported.