We currently have the following placeholders related to my suggestion:

• one to check an expiry time for a player's personal groups/parents
• one to check and see all inherited groups a player has
• one to check an expiry time for a player's personal permission
• one to check for expiry time on a player's inherited permission

But we do not have:

• one to check expiry time on a player's inherited group/parent

Usage:

• We have global boosts that we have a load of permissions store in a parent group called "boost" for example. When someone purchases a global boost, the parent "boost" is added to the default rank for so many hours.
• We want to create a custom command that goes "Time left on <specified> boost: <placeholder>". Which is definitely possible thanks to Papi and LP but wondering if we can get a placeholder added which combines a couple features of your other placeholders

Suggested papi name:

• %luckperms_inherited_group_expiry_time_<group_name>%

This was already added :)