On Fri, Jul 18, 2014 at 5:32 PM, Sam Liddicott
<address@hidden> wrote:
<tuple|a|1|<tuple>|->
You wouldn't ;)
You'd use insert:
(insert '(tuple "a" "1" (tuple) "-"))
You also have insert-go-to if you want to place the cursor at a subtree but be careful, TeXmacs is quite sensitive to malformed paths.