mwSaveAndRestore allows you to select a section of your current document and by clicking on the 'Save' icon on the PseudoFolds tab on the action bar, remove it to another file. You choose the filename and this is placed in a comment that replaces the selected text. To reinsert the selection, place the cursor somewhere in the comment tag and click on the 'restore' button on the PseudoFolds action bar tab.