Exchange one insect is a necessary action to follow the crop evolution and the season over the year.
If your trap already possesses one or more licenses affected to insects, you can substitute those by new ones. All must be done through the www.e-gleek.com web site (go to your account and modify the trap configuration).
The changes will be effective only if you have enough tokens. In case not, you'd have to fill up your account at shop.advansee.com