how i can change group of room names in the same time that i did make with m room tag in revit

[saliiimddd]

how i can change group of room names in the same time that i did make with m room tag in re

[mhiserZFHXS]

What do you mean? Do you want them to all be the same? Or are the names all different? And at the same time you make the room tag? Like the instant you place the tag the name changes?

[saliiimddd]

all the same ,, like a mass changing after i did already put them

[ToanDN]

Select all the rooms and enter the new name in properties. Or create a room schedule, untick Itemize every Instance and enter the new name once for every room.