How does one use upgrade sketches

3 Replies
5 June, 2016, 11:08 PM UTC
Once one has an upgrade sketch how does one use it to upgrade a building.
UTC +1:00
Alyona Kolomiitseva
Community Manager
6 June, 2016, 10:41 AM UTC
Enter the Building and press Upgrade. Available Sketches will be deducted automatically.
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UTC +2:00
29 June, 2016, 3:07 PM UTC
There is no option to use upgrade sketches when one enters a building.
UTC +1:00
29 June, 2016, 5:39 PM UTC
The one detail omitted is the building normally has to be level 20 or above before using sketches, except the Infirmary to get above level 13.
UTC +5:00
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