Hi there @Speaker
The swing function & amount is really related to ANA 2 's Arp sequences events inside the arpeggio screen, like the gate parameter, it allows you to give a nice shuffle to your arp sequence programmed inside ANA 2 arpeggio.
If you enable the "Sync" feature, then the arpeggio tempo will synchronize & follow your Host (DAW) tempo, so if you're using a 25% swing in your host, it's affecting first any Midi notes you would have in Midi regions on ANA 2 track and then those notes are gonna be triggered and modify by ANA 2 arpeggio and it's own swing & gate settings.
So you could combine the 2 to get very creative & cool shuffle if you're using midi clips on the track and passing them through ANA 2 arpeggio, but the swing feature in your DAW and the Swing knob in ANA 2 arpeggio are not directly linked.
You'll get more information about the Arp features inside ANA 2 starting from page 44 of the manual which is accessible from ANA 2's MENU.