Add your campaign parameters to every link without typing them over and over.
Set your default UTMs once and Linsei adds them automatically to every link you create. So all your links carry the same campaign tags without typing them each time.
When you create a link, Linsei adds the default UTMs to the destination URL. It only adds the ones you didn't set by hand in the form (manual wins). If you use the affiliate add-on, UTMs are added to the product URL before wrapping it with your affiliate link, which is the correct order.
From Add-ons, click Install on "Automatic UTMs".
In Add-ons › Automatic UTMs fill in utm_source, utm_medium, utm_campaign… (whichever you want). Optional: a list of domains where not to add them.