MGui Designer operates in a true ‘What You See Is What You Get’ way. While you create your object hierarchy, true MGui objects are inserted consistently in a true window.
 

The layout window can be used to test the look & feel of the dialog windows in the project. Moreover you can use it to quickly and easily select an object for editing and to resize/move it.

Clicking the left mouse button over a true MGui object in the layout window causes the object to process the mouse click normally and also causes the object to be selected for editing.

Clicking the right mouse button causes the ‘Attributes’ popup menu to be open for operating on the selected object.

Holding the ‘Ctrl’ key down while the right mouse button is clicked causes the ‘Edit’ popup menu to be open for operating on the selected object.

Holding the ‘Ctrl’ key down while dragging causes the object to be resized. The new size you get as you release the mouse button will be locked.
To unlock the object size and reset it to the default value, you have to click the left mouse button over the actual object while holding down both ‘Ctrl’ and ‘Alt’ keys.

Dragging an object that is child of a PosForm container while the ‘Shift’ key is pressed causes the object’s position to change accordingly to the mouse movement.