To generate a printout, open the tab "Printouts" and click a printout:
The position selection opens:
To create a printout for all positions of the project, select the option "All positions".
If you want to select individual positions, select them before opening the position selection by holding the CTRL key on your keyboard and selecting the positions with the left mouse button:
Then click a printout in the "Printouts" tab and select "Marked Positions" in the position selection.
You can also select individual positions directly in the position selection by clicking "Select positions". Then, select the boxes in front of the position: