Toolkit 1.3.0 has introduced 'Label Variants' for DLT Labelling. They allow the use of up to four labels for any C-Bus group address, which means efficient labelling of multiple key functions, such as 'On Up' and 'Off Down' pairs.
They can also be used to apply unique labels to several Scene Modify keys on the same unit.
Note: Label Variants are an advanced labelling function. For an introduction to DLT Labelling see 'Tutorial : Dynamic Labelling Technology' here: http://www.cbusforums.com/forums/showthread.php?t=401
The Key Labels tab has been added to the Unit Dialog (See example below). This provides a preview of each key's Application, Group, Function and Label. It also lets you set each key's Label Variant.
Note: DLT Labels must still be applied through the network level 'DLT Labels' dialog
I've added a DLT to my Database, created a group called 'Kitchen Light' (by clicking on the green '+' for Key 1) and assigned Keys 1 & 2 to the group with 'On Up' and 'Off Down' functions (by selecting from the Function drop box for each key).
In the Key Labels tab, we see the new Label Preview table. We want to assign different labels to Keys 1 and 2, so in the Label Variants column for Key 2, select 'Variant 2'. Leave Key 1 on 'Variant 1'. This will mean Key 1 is labelled with the 'Kitchen Lights: Variant 1' label and Key 2 with the 'Kitchen Lights: Variant 2' label.
That's all we have to do in the Unit Interface, so save the changes (OK) and lets go assign the labels.
In the 'DLT Labels' section under the network node of the Tree View, you should now see the 'Kitchen Light' group is present and can have a unique label for Variant 1 and Variant 2.
Lets set these to 'On/Up' and 'Off/Down' and save the changes.
If you now look back at the 'Key Labels' tab of the Unit Interface (or at the unit if it exists on your network), you should see Key 1 is labelled with 'On/Up' and Key 2 is labelled with 'Off/Down'.
This is a basic example of how you might commonly use Label Variants. Hopefully it gets you started thinking about where they can help.