Is there a "skip" function?

[Sirocco]

Better make all the necessary apologies first, since I'm a "newby".  If I'm posting in the wrong section, please tell me the correct section - I would appreciate it.

Regarding my actual question: when you want to instantly jump ahead x number of seconds or minutes (in a long recorded radio show, for example) by clicking on a button, this is skipping, where x is usually user definable.   Does Rockbox have this function (or does the Sansa E280R have this already)?

[saratoga]

You can seek by holding the left or right arrows.

[Chronon]

If you know you will want to repeatedly go to a specific location in a long file you can also make a cuesheet.

[Sirocco]

I didn't know about the cuesheet, that's cool.

Saratoga, I know about "seeking", that's plain old fast forward.  

But what about "skipping", where you "click" the button, as on some other players.