Pause without interaction

The pause action part allows to interact. How I can suppress that?

The pause action part is for creating a pause in the action lists. It's not for pausing the game.

If you want to prevent interaction then use the begin / end cutscene action parts, or the hide / show cursor action parts.

They are both the same thing more or less, but in the current public build, the begin / end cutscene action parts will hide all interfaces. In the next build you can declare which interfaces should be hidden / remain invisible during cut-scenes via the properties tab of each interface.

Sorry, I don't understand (or maybe I was also misunderstood). If I shouldn't use the pause command to create a small pause how I can set the time of a pause with begin / end cutscene or hide / show cursor? I need only a small thinking pause between two spoken texts.

Pause action part just adds a delay between when the next action part in a list of actions is triggered. It will not kill interaction of any kind. Try wrapping your display texts & object interactions in cutscene action parts. This will prevent the player from interacting when you don't want them to be able to click around the screen. As long as you have the always skip text option checked in the main game tab, then displayed texts can be skipped by left click. Also as a bonus, the player can skip the entire interaction via the ESC key if they can't be bothered to watch the sequence again due to playing it before.