[TYPO3-english] userFunc condition

[Pero Matic]

Dmitry Dulepov wrote:
> Hi!
>
> Pero Matic wrote:
>> It's titled Condition problem - new way. Dmitry you're Typo3 guru,
>> can you please help here. Thx!
>
> I read it but it is not really about conditions. You need a hook or
> something like that to manipulate the setup depending on runtime
> values.

Can you please (or someone else) then explain me this. I can't get it from 
doc. When i have ie some object like this

20 = COA
20.10 something bla bla
20.20 bla bla
20.30 if {
    value = foo
    equals = bar
    negate = 1
}

Does this mean that if condition is false than object 20 will not exist or 
i'm totaly in different universe?