Hi,
yes, you might do in the callback of your pushbutton something like
handles.mytable = uitable('units', 'normalized', ...
'position', [0.1 0.1 0.8 0.3], 'Data', rand(2,8));
guidata(hObject, handles)
Here the position is given relative to the entire GUI. You might as well use pixels for the position or characters.
Titus
