Ho, thats what different pattern lenses are for on LF, actually. If you like beam stuff - you just getting clear ones and focus to your liking. If you need wider patterns - you go combo or wide angle, and adjust focus thingy accordingly. In general idea is to build up brighter spots where you like them, not where some generic dude thought it will be nice to have them.
I am not advocating LFs, i am just saying that for each its own.