How to use 'Favorites' on External FX + Ext.Instruments

After setting up External FX or External Instruments in the VST Connections section, I click the [Favorites] button to save the settings - but how do I recall those ‘favorites’ when the settings get lost as they sometimes do for unfathomable reasons?

…and why do these two tabs not have the same ‘Presets’ saving and loading features as the ‘Inputs’, ‘Outputs’ and ‘Studio’ tabs in the VST Connections section?