The point-in-time recipes were not in the last stable release of the LBT plugin (1.2) but they are in the current development version of the LBT plugin and they will be in the upcoming stable release (1.3). Both grid-based and view-based recipes are available.
If you need to use the development version of the plugin now, you can get it by following these steps:
Run the “LB Versioner” component with no version_ input and clean_standards_ set to True
Load up a .gh file that you want to use with your new development installation and run the “LB Sync Grasshopper File” component to sync the version of the components on the canvas with your installed development version.