Adding leaves puts people on the tree; connections are how you link them into partnerships and parent-child lines. Add your people first with "New Leaf", then click the "Manage Connections" button at the top of the tree to open the connection panel. It has three tabs: Partnerships, Households & Children, and Tree Links.
A quick note on refreshing: the canvas updates as you add new connections, but re-ordering by drag-and-drop, or changing a line's color or style, will need a page refresh to show on the tree.
Partnerships
A partnership links two people as spouses or partners. In the "Add a partnership" form, pick a Person and a Partner, then optionally add a Note (married, divorced, engaged, widowed, and so on), a Line style (solid, dashed, or dotted), and a Color. You need at least two leaves on the tree to make one.
Existing partnerships are listed in a table where you can edit or remove each one. Drag the grip handle to set which relationship came first — this mostly matters when one person has several partnerships and you want them in a particular order. When a single person has three or more partnerships, only the first-position partnership stays editable for line styling; the others follow its lead, so the group stays visually consistent.
Households & Children
This tab is where you build parent-child lines. A household is either a couple (two partnered parents) or a single parent, and each one lists its children. To add a child to a couple, use the "Add a child…" dropdown on that household's card. To add a child to a single parent, use the "Add a child" form at the bottom, choosing a Parent and a Child.
Chronica won't let you create an impossible relationship — anyone who is already an ancestor or descendant of the parents is disabled in the child dropdown, so you can't accidentally make a loop.
Within a household, drag the grip handle to set the children's birth order. Each child has an edit button where you can add a Note (such as adopted, step, foster, or ward), and set the connecting Line style and Color — a dashed line is a nice way to show an adoption, for example. Removing a child just detaches the line; the leaf stays on the tree.
If your tree has more than one person at the very top with no parents above them, you'll also see a "Top of the tree" card. Drag those entries to set the left-to-right order of the topmost nodes.
Tree Links
A tree link drops a signpost node onto your tree that points to another family tree in the same campaign — perfect for connecting two large families without cramming them onto one canvas. In the "Add a tree link" form, choose the Person whose line continues (or leave it as a standalone node), pick the tree it Continues on, and optionally give it a Label (it defaults to the linked tree's name). You'll need at least two trees in the campaign to create one. Players only ever see links that point to non-secret trees.