Character Level Up default source

[Bernie]

Can I make the default source the Player's Handbook? How come it lists the others as Legacy? 67474 67475

[Bernie]

When I select Player's Handbook no character classes appear. I type in Monk and nothing

[Zacchaeus]

Can I make the default source the Player's Handbook? How come it lists the others as Legacy?

All of the books prior to the release of the 2024 Player's Handbook had Legacy added to their titles to distinguish them from the 5.5e rule books. You can still use legacy material even if you want to use the 5.5e rules. You can't set the default to the Player's Handbook, but if you only want that then make sure you don't have any of the other books open. You can select the PHB (or any other book you have open) from the dropddown so that it only shows content from that book.

[Zacchaeus]

When I select Player's Handbook no character classes appear. I type in Monk and nothing

You don't see this screen when you select the PHB? Are you running any extensions maybe?