%
% engage task tree
%
empty
sel@?
{
 empty
%
% check for hierarchy of help dest settings in current tree
%
 false
 "Help" *settings
 pop
 any?
 {
%
% help dest settings were in tree
%
 }
 {
  _\ hier
"xhier" log)(
  "\" right$
 } ifelse
 ^"#"
 !Help.Url
} if
%
% stack: abs-help-dest
%
x/root*

*xhelstar