Hi, Heavytiger!

Here's the trick.

Type in all the names you require into your End Credits scrolling title, don't worry if they're aligned or not. That can be fixed after you've completed entering the "details". When all the details are entered, highlight the text, and, at the top on the animation window, next to the font selection, click to aligne text left, right, or centre.

Watch it through as a "dry run" to check if it's the way you want by clicking on the Play icon in the animation window. If it's as you want, click Okay and it's done. If not, make whatever alterations you need and give it another "dry run". Do this as often as needed until you're satisfied with the result, then click Okay.

Cheers!