KETTLER WORLD TOURS 1.x and 2.0 issues automatically according to the license when the previous one has expired. An early input is not possible.
If you have already disabled the input refer to KETTLER WORLD TOURS 2.0 in the Info dialog (appears by click on the i right above) a link to enter the serial number can be found. Under KETTLER WORLD TOURS 1.x, there is an additional menu item in the Help menu that will only appear when the license has expired.
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