I see that there is a "Own buff/debuff" selection which support partial names.
But I was hoping that we could also get a "Own buff missing" selection.

My goal is to use squares to track if I am missing one of my paladin blessings on my party or raid members.

We have several blessings to choose from and using the "Missing Buff" selection with logical "/" separators for each blessing would work if it also had an option for check for buffs coming specifically from the player.

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Why do you need an option that lets you ignore already buffed blessings so you can overwrite them with your own?