Copy-paste Silence macros for Priest in WoW Midnight: focus and mouseover versions, ready to use. Add Shift/Ctrl/Alt spells, raid markers and a chat callout in the macro builder.
Open the macro window (/macro), make a new macro and paste: #showtooltip /stopcasting /cast [@focus,harm,nodead][] Silence
Open the macro window (/macro), make a new macro and paste: #showtooltip /stopcasting /cast [@mouseover,harm,nodead][] Silence