How do I record a simulation in LOGO Soft Comfort V6?

It is possible.
There are quite a few "desktop recording" applications.
This is how I showed how what I designed works, for example.

Added after 3 [minutes]:

Meti11111 wrote:

Siem,
i am a beginner, so if I spell something wrong then please correct it

I have Logo soft comfort v7 and the simulation as such is there - but baaaavery basic ( on the principle, that when you turn on the input, the bulb lights up ) and nothing else, so there is no crazy

Not really. You can set the type of input e.g. works if you hold or switches permanently. You can adjust the values of the input signals, you can set the internal values of the counters. You can also simulate cursor key presses(if you have chosen such a model). You can also change the internal values of the counters.
All in all, you can change quite a lot.