What would you do - deck light control with limited space in box

[tadr]

I've been toying around with different options for my new deck lights, and wanted to get opinions from others on how they would handle the situation.  I use zwave with leviton switches and a vera lite.
 
I have a double gang box with 2 switches (one for kitchen lights and one for outdoor wall lights) next to the door to my deck. The deck lights are hardwired to a zwave switch mounted in the basement.  I want to be able to control the deck lights from the double gang switch box next to the door to the deck.
 
Requirements:
1. Any new zwave switch must support instant status (like my leviton switches)
2. The dimmer for the kitchen lights (one of the switches in the 2 gang box in question) is a companion switch in a 3-way setup.
3. I want to keep a dedicated switch for the kitchen lights, if at all possible.
4. The switch for the outdoor wall lights needs to be a dimmer.  The switch for the deck lights is not a dimmer.
5. Due to the location of the studs, it is not possible to replace the box with a triple-gang.
6. There is an elk keypad right above the 2-gang box.
7. I want to have independent control over all three loads: kitchen lights, outdoor wall lights, and deck lights.
 
Any ideas?
 
Right now I have an F-key on the elk programmed to toggle the deck lights, but I'd rather have a dedicated switch.
 
Is there some way to setup a double-tap or hold function with zwave switches?
 
The only other option i can think of is one of the leviton 4-button scene controllers with a switch for a local load.  I could use the local load switching for the outdoor wall lights, but I don't think it supports dimming on the local load, does it?

 

[tadr]

After typing all this up and thinking about this more, I think I might just trigger them from an outdoor motion detector and leave them on for a preset amount of time - 30 minutes or so.  I can set them to only come on if it's night, etc....

 

[pete_c]

Note this is regarding my use of UPB switches.  (have Z-wave too but haven't seen multiple load multiple toggle Z-Wave in the gang box switches yet).
 
I redid my deck lighting in the last couple of years.  I went to utilizing LED lighting.  That said I also went to multiple smaller DIN 12VDC power supplies versus larger toroidal multiple circuit/multiple voltage AC transformers (used 4 of these on 4 separate circuits).
 
These are all in the basement and controlled by UPB switch(s). 
 
I do also have HV lighting on my deck.  That too is controlled by UPB switches.
 
I did though install a UPB switch in the kitchen converting a double gang box single mud plate set up to a double gang box with two switches.
 
The UPB switch for the HV lighting is doing the lighting virtually.  (2 HV lamps/ UPB switches right now).
 
Last year I added many UPB multiple toggle switches. (plus some dual load UPB switches).
 
In the kitchen I reduced the two gang box two switches set ups to single and used multiple toggle UPB switches.  There were too many switches in the kitchen and kitchen dining nook.
 
That said I have a switch today next to the deck door that would turn on and off the deck LED lights with no issues using links.  Its already configured to control some 3 lamps; outside coach deck lamp, kitchen nook and main kitchen can lighting).  The LED for the deck lighting control would simply be configuring another link on the switch.

 

[potts.mike]

You could always put one of the 4 button scene controllers (the one that doesn't control a load) where the 3 way switch is. Then program a button to replace the 3way capability.