Selecting items

items are highlighted in orange when they are selected to select a single item, click on it any previously selected items will be unselected to select all items in the entire diagram, right click on the editor's background and choose the select all items option alternatively, use the select all option in the edit menu at the top right to select multiple items, one way is to drag a selection area around them by clicking on the editor's background and dragging a selection window around them oftentimes you will need to make space in a diagram to insert new modules the easiest way to do that is to right click on a modules and choose the "select this and all items below" option alternatively, click on the module and choose the same option here yet another way is to right click on the editor's background and choose the select all below option then all items below that module will be selected selected modules can be moved as a group by dragging any one of the selected modules to deselect all selected modules, click on the editor's background