sisotool in R2017a

Hi all,

I'm reusing some code where I create a sisotool of a plant with:

GLB.handle_SISOTool=sisotool(GLB.G,GLB.C,GLB.H,GLB.F);

then, once the system has been handled and possibly modified in the control system designer I'd like to import it in the code. With Matlab R2015a the following code worked:

if (ishandle(GLB.handle_SISOTool))

    data=get(GLB.handle_SISOTool,'UserData');

but in R2017a I had to change the ishandle with isvalid. The problema is that I cannot find a way to get the UserData. The error is:

Error using get
Cannot find 'get' method for ctrlguis.csdesignerapp.internal.ControlSystemDesignerApp class.

Could you suggest some way to extract these data?

Cheers angelo