You can make two macros I suppose to do this
/use [@mouseover] Beacon of Light
/use [@focus] Lay on Hands
The beacon of light macro will focus your mouse over target and use beacon on him. The LoH macro will LoH your focus.
If you do not like the mouse over part, another alternative is this:
/use Beacon of Light
On another note, IMO a mouse over macro is better for LoH over all. It will allow you to quickly use it on anyone in the raid.
/use [@mouseover] Lay on Hands
But that is just personal preference.
Edit: looking at your armory. DO NOT USE a nightmare tear in your helmet... Switch that to a +320 spirit gem or a +80 int/+160 spirit... Much more useful.
For you legs you should switch that to
Greater Pearlescent Spellthread
Edited by Krazyito, 24 February 2013 - 08:42 AM.