Hi, for some function packages (or addons, like SVAR) it would be useful if more than one function could be integrated more tightly for GUI usage. Here's a concrete suggestion that perhaps wouldn't be so difficult to implement. I'm thinking about an analogue of the current bundle-plot apparatus: - add a new "bundle-action" element to the spec file of a function package which points to another public function of the package - just like bundle-plot, the corresponding bundle-action function must take an integer argument with appropriate labels, corresponding to the menu entries that are created; and of course also takes the bundle (pointer) as another argument - Depending on the input value of that integer argument, the designated bundle-action function would call other functions of the package as appropriate: in the GUI  such a call should lead to a new window being opened for inputting its argument values, (almost) as if that other function had been called right at the beginning. The only difference would be the bundle that presumably would always be implicit in the call; that could perhaps be omitted from  this call window, or could be greyed out or whatever. I hope that was a clear explanation of what I have in mind. thanks sven