Edit free space.
To edit the free space you can use the 'Edit free space' button (see red arrow). After you click the button a new window will appear and in that window you can edit the default free space word (see yellow arrow) and picture (see green arrow). Once you're done editing the free space just click the 'Back' button (see blue arrow) to go back to the main window.
Note: you can exclude free space from being included in the bingo cards by uncheck the 'Show free space' option (see gray arrow) use this option if you want to make bingo cards without free space.

Change free space type.
There are 3 types of free space (same as call list) that you can choose (see red arrow):
- Words and Pictures, you can use this type if you want the free space to show words and pictures in the bingo cards.
- Words only, you can use this type if you want the free space to show words only and exclude the pictures in the bingo cards.
- Pictures only, you can use this type if you want the free space to show pictures only and exclude the words in the bingo cards.

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