Secondary Members

You can create secondary members with these methods:
On Plane Creates a member on a plane between two primary members. Select a plane and two primary members.
Between Points Creates a member between two primary members. Click to position the endpoints of the secondary member. You can offset the position by specifying a distance from the primary members.
Up To Members Creates a member using Point Member pair or From Point. In Point Member pair, select a point and member to create a member between them. In From Point, select a point and multiple members to create multiple members.