Add flag button Uniform Margins to the Document margins into Layout/Margins and Columns

In the Layout/Margins and Coloumns window menu when I have selected a Master Page, I find no way to re-uniform the margins to the original margins set for the entire document. This would be a useful feature: when I changed the format adding 4mm to my 17x24 cm to be 17x24,4cm as the standard used by Amazon kdp for paper format, I would like to preserve the preceding paging by adding 2 mm to the inferior and superior margins. I did it in the menu File/set document for the whole document, but I saw my pages did not update since the format was manually set for the Master pages. So I had to change manually again the format for each master page in the Layout/Margins and colums menu. If I could set the command "uniform to the document settings" (in the position I put on the image attached) if would be more professional and it would also follow the document settings if I change format again.

Could you please implement this flag button?