Hi MaSk,
you could create a textbox:
figure()
ann = annotation('textbox',...
[0 0 0.3 0.1]);
and then write the simulation state to the textbox using the model callbacks (Model Properties >> Callbacks).
To do so, insert following code in each callback (PreLoadFcn, PostLoadFcn, ...):
ann.set('string',get_param('sys','SimulationStatus'))
Remark: using disp() to write directly to the Command Window instead of a textbox seems not to work anymore (tried it with MATLAB 2016b).
