Quick question - which 'type' of focus adjustment

ok, I'm having a 'moment' - even though I've done this before I'm now doubting myself.

I have a Samsung GX20 and am attempting to set the AF fine adjustment setting for a single lense - do I need 'all types' or 'single type' to change settings for a single lense?

Also, if are the settings cumulative between the two types or is it one or the other?

Thanks

I think you answered your own question !?

As for cumulative, the panel's still out on that

I know it sounds obvious but I'm having brain fade today!

When I went into the menu options it was set to 'all types' and I could have swore it was set to 'single type' so I confused myself!