loaded structural connections not appearing in properties pallete

[LanggamanXavierMassed]

im new wit hstructural, i should be posting in that board but i think all u guys here do this because it's pretty basic but, i don't get what is going in. i have loaded base plate families but it doesn't show in the propertie pallete as a choice.the family in the smaller box is the loadedone, which i choose to applybut it's not here, it must be something about category or family type i think. i don't understand how this works. thnak you