A LabVIEW Quick-Drop (QD) plug-in to easily add or remove labels to blockdiagram elements.

This quick-drop plug-in works only in the block diagram.

The plug-in provides the following functions:
- Add/Remove a label to a SubVI.
- Add/Remove a subdiagram label to a structure element.
- Add/Remove a label to a wire
- Show again an already set wire label

Add or remove a label to SubVIs
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Select a SubVI within a blockdiagram.
Press Ctrl+Space and Ctrl+Q to add a label to a SubVI. For removing the label press Ctrl+Spaceand Ctrl+Shift+Q.

Add or remove a subdiagram label to a structure element
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Select a structure element within a blockdiagram. Press Ctrl+Space and Ctrl+Qto add a subdiagram label to the structure element. For removing the label press Ctrl+Space and Ctrl+Shift+Q.

If you insert a text into the QD combo box it will be inserted as subdiagram label of the visible frame.

Add or remove a label to a wire
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Select a wire. Press Ctrl+Space to open the quick drop. Insert a label text to the input field. Press Ctrl+Q to add the inserted label to the wire. The plug-in will add >> before and after the label text. For removing the label press Ctrl+Space and Ctrl+Shift+Q. If you want to add the removed label again press Ctrl+Space and Ctrl+Q.

Add label to a constant
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Select a constant. Press Ctrl+Space to open the quick drop. Insert a text to the input field. Press Ctrl+Q to add the inserted label to the constant. For removing the label press Ctrl+Space and Ctrl+Shift+Q. If you want to add the removed label again press Ctrl+Space and Ctrl+Q.

It is also possible to select more than one element within a blockdiagram. Therefore the appropriate label will be added to the selected elements.

An animated GIF on the homepage shows the usage of the plug-in.