label room customizable

[danilo64]

hello to all
I would have the need to create an etiquette to calculate the value of the surface of an apartment with a percentage of reduction of about 3% corresponding to the plots.
Do you think this is possible?
Ultimately when I create an apartment at first I do not have to take into account the environmentx environment but of the total area reduced by 3% to finally find the exact value of the useful surface of the apartment when I submerge room by room.
thanks in advance
Danilo

 

[Tristan]

with the label I fear it is not possible, but certainly with the abbot it is!

 

[danilo64]

with the label I fear it is not possible, but certainly with the abbot it is!

Hello and thank you for having responded
the problem of abaco is that I can only insert it in the sheet ... it is not exactly immediate and practical.
I will continue with the text
Danilo