Hey Newbie7
Are you looking to have this panel motorized as you say? For instance, are you going to use a motor and such to drive the physical movement? Or are you going to use springs and gears?
A good starting point would be to check out some of the already manufactured units. The flat screen displays etc. See how they work, and check out how the manufacturer has rigged the panel.
Another question to ask yourself, how much weight are you talking about lifting, lowering, our sliding in and out of the ashtray? This could be a factor when considering how much torque you may need to lift, slide, or lower the device.
Finally, what type of control are you looking for? Are you going to want the motor only to run, when you hold a button down? Or are you wanting the device to operate at the single push of a button, then stop at a predetermined distance. Using a motor for the first option, would be pretty simple, with the physical systems aside. Using a motor for the second option may become complicated, using a controller and light gates etc.
I suppose we need more information to give you specifics. Rule of thumb, check out what has already been made by someone else. There's good reasons behind their design. From there, you can tailor to your needs.
Good lucK!