Tap tempo is always available. It will always update the global tempo when you tap in a new tempo unless an external MIDI beat clock overrides it. The "Tempo To Use" setting in the tempo menu controls what happens to the tempo when a preset loads. If set to Global, the tempo changes to the current global tempo, which is the tempo you last tapped in on any preset or the tempo from an external MIDI beat clock. If set to Preset, anytime a preset is loaded, the tempo will change to whatever tempo was set when that preset was last saved. If you want the tempo to always recall a pre-saved setting, use the Preset setting. If you want the tempo to use the last tempo you tapped in or an external clock tempo, set it to Global. Keep in mind that this settings is stored per preset, so setting it to Global only affects the loading of the current preset and you have to save the preset for the setting to stick. Preset is the default setting.