my solution if anyone need it:
50 = TEXT
50.value = get involved
50.typolink{
parameter = 28
additionalParams.rawUrlEncode = 1
additionalParams.data = field:header
additionalParams.wrap = &type= |
ATagParams = class='btn btn-primary btn1'
}
it creates a link to page 28 and puts the GET param &type= at the end the wrap contains the header of a part of the content
The link looks like this:
http://localhost/index.php?id=28&type=dread_disease
hope it'll help. _problem solved_