I am testing the Demo version and tried to set the set_actions(array as follows
set_actions(array(
"add"=>true, // allow/disallow add
"edit"=>true, // allow/disallow edit
"delete"=>false, // allow/disallow delete
"rowactions"=>true, // show/hide row wise edit/del/save option
"search" => "advance" // show single/multi field search condition (e.g. simple or advance)

But when I did the actions options disappear…(I just want the user to be able to edit not delete a record) is this a problem in the pro version also?