The Last column on the right — in your pic it says растягиваться but in the English version of AE it's called Stretch — that's the one you need to modify Click on the number that says 100%.
Alternatively, select the layer and from the Layer menu choose Time>Time Stretch… (I'm not sure what it is in Russian).
Then you'll get a dialog that lets you choose the duration you want, or a stretch factor if you want to choose the playback speed.
Apply Time Remapping to the layer (choose Layer from the menu or Right-Click the layer and then choose Time>Enable Time Remapping or hit cmd/ctrlalt/optionT).
This will create a keyframe at the start and end of the layer.
Drag the last keyframe to the point where you want the layer to end.
Park the playhead at the time you want the layer to end.
With the layer selected hit ctrl/commandalt/option,, which will stretch the out point to the current time.
You can do the same with the in point using ctrl/commandshift,.