First thing to check is if Podium has account of your MIDI hardware device:
Setup > Audio/MIDI… > MIDI Devices (tab) > MIDI input interfaces (section)
Ensure your device is listed and that there’s a check mark next to it. Then hit ‘Apply’ and ‘Okay’. Podium will ask if you want to update the mappings, so allow this.
Then, within your arrangement, below a track’s Source selector (drop-down menu), there’s an Input selector. Your MIDI device should be within that menu, probably with a generic label like ‘MIDI In’. Select that device and the track should then be able to receive MIDI input.
Once a MIDI Input is selected, if you Right-Click the slot you will find an option to Auto-Assign to Focus Track. Enabling this option means that when you select a track, the MIDI device will automatically be input of that track.
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