Now, I know many people use tabs to do this sort of aligning, but it's not the right way to do things, because if copy reflows for whatever reason, you've got all these irritating tab characters where you don't need them. So yeah, bad practice.
So, it's the same command as it is in Quark for an 'indent to here' character.
Set the cursor in the text in the line above where you want the following text to align to and then go to Menu: Type>Insert Special Character>Other>Indent to here... or the identical keyboard shortcut in Quark as well is: Command + \
Note that all copy that is in the same paragraph will then align to that mark; its viewable by Show Hidden Characters, right at the bottom of the Type menu. Any copy in the same paragraph that is nudged on with a soft return will also align; it takes a hard return to start a new paragraph where you can set new indents.