There are a couple of options on where the Addin Type can be added. FNC will put the name of this at the top toolbar when in a Full Note Composer, you can also select External System, which would add it to the Dashboard under External Systems, You can add it as "toolstrip" attachment (paperclip) and it shows on the toolstrip in Demographics or FNC (does not show name unless you hover over it)
FNC is the best option for placement but depends on the site.