I just purchased a preset called Mono Landscape but can't figure out how to install it or access the preset from my LR 5 application. Please help!
I hope that you have downloaded the Preset, and it should be the file format.lrtemplate.
So please open Lightroom and go to the Preferences, then click on the Presets Tab.
In the Presets Tab , please click on " Show Presets Folder ", now copy the downloaded .lrtemplate file and paste it in the user Presets under Develop Presets.
Restart Lightroom. the preset should be there.