You can instal in fcpx in 2 ways after downloading
1: Copy the folder and go to Movies>Motion templates>Titles>
2: Copy the folder and go to the Applications and right click on Final CutPro>ShowPackageContents>Contents>Plugins>MediaProviders>
MotionEffect.fxp>Contents>Resources>Templates>Titles
now open fcpx you can find them in Titles or in Custom>Titles
and follow the Fcpx video tutorial which is included in the project