I can’t find similar areas.

This can be for several reasons.

1. In the Mapalizer you’ve no filter (s) added so you can’t select an area you want to find similar areas of.
2. In the similar areas filter, the “minimum feature similarity percentage” and/or the “maximum feature deviation” is set too ‘tight’. Play with these percentages.
3. There are no similar areas that match your filter characteristics.