It may be that you want a three, four, or ten point scale across the top of your abacus on which to measure progress. You can do this by adding and deleting the levels. First click on the Customise button at the top of the screen.
To add levels, simply click the Add level button to the right of the list. This will bring up a box that lets you add a name for the level and choose a colour.
Once you have made your changes to your abacus, click on the back button to see the changes.
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