Autosize text frame on master page

[#1]

Is it possible to put autosize text frame on master with section marker and when add new page to autosize according to variable section marker text?

[#2]

Is it possible to put autosize text frame on master with section marker and when add new page to autosize according to variable section marker text?

[#3]

I don't think so: a section mark is a single character. I just tried and it does not work, but maybe there is another way to achieve what you need. Can you explain?

[#4]

I make a magazine with different sections. These sections are marked on each page with a colored box which should be of different widths according to the text of the section marker.

[#5]

You could easily use a paragraph rule or a paragraph shading.