I can't figure something out. Need help please.

[gfaprogram]

Hi people, I've been searching all over this board and I can't seem to find my answer.

I just recently re-activated my s2membership on my blog after I upgrade to the latest version. Before I upgraded I recalled very simple shortcode rules.

I remember I was able to do the following:

"This is my content, at one point I was able to do shortcode [s1] Inside this shortcode [/s1] this content was blocked and replaced with text I had set in the settings (Such as...member content blocked, click here to register)".

Anyone recall this? How can I do this again? I don't see anything in regards to the setting that let me set the text that fill the shortcode.

Thank you in advanced.