Mask in advanced renaming

Hello,
usually I use the advanced renaming feature (batch renaming) in order to change the name of the photos to one more date-descriptive: %Y%m%d_%h%u%s.%{ext}
But sometimes I want to use another mask for a set of photos, for example: mountain_1, mountain_2, mountain_3, .... and then again one must type the date-mask.
It could be great to change the mask edit box by a combo box and store in it the last 4 o 5 used mask.
Thanks and congratulations for this great software.
Angel.
usually I use the advanced renaming feature (batch renaming) in order to change the name of the photos to one more date-descriptive: %Y%m%d_%h%u%s.%{ext}
But sometimes I want to use another mask for a set of photos, for example: mountain_1, mountain_2, mountain_3, .... and then again one must type the date-mask.
It could be great to change the mask edit box by a combo box and store in it the last 4 o 5 used mask.
Thanks and congratulations for this great software.
Angel.