Insert palette
Insert is the palette of things you can add to the page: the standard HTML building blocks plus your own components, laid out as cards.

Open it
Insert has no button on the Navigator rail, because it is a palette you reach for at the moment you need it rather than a view you sit in. Two doors:
Press ⌘K and run Show Insert .
In the Outline panel of an empty page, click Add an element .
It opens in the Navigator, under an INSERT · document header. Unlike the other document panels it is happy with no document open, because an element palette still means something before you have chosen where to put anything.
What's in the palette
Components are at the top: your project's own, plus components from installed packages once they're enabled for the project (see Dependencies ). Project components render a live preview on their card, so you see the real thing before you place it.
Element categories come below: the HTML elements grouped by category in accordion sections. Each card shows a small preview of the element and its tag name.
Type in the Filter elements… box to narrow the palette by name; categories with no matches disappear. Click a category header to collapse or expand it. When a filter matches nothing at all, the panel says so and offers Clear the filter rather than leaving you with a blank column.
Insert by click
On the canvas or in Outline , select the element you want to insert into.
Click a card. The new element lands inside the selection, after its existing children.
With nothing selected, the element is added at the end of the document. With several elements selected , it lands inside the last one you added to the selection, because inserting is a one-place verb and that is the place you pointed at most recently.
Insert by drag
For an exact placement, drag the card instead:
Press and drag any card toward the canvas.
As you move over the page, an indicator line shows where the element will land: before, after, or inside the element under the cursor.
Drop to insert, or press Esc to cancel.
The new element arrives selected, ready for the Inspector's Content and Style tabs. Dragging works the same in Edit and Design view. The canvas covers the other ways to insert: the + affordance between elements and the slash menu.
Inserting adds one element node to the open file. A component card adds an instance tag like
<site-card>
. The format is described in
Components
.
Next
Get your own cards to appear here with Working with components .
Rearrange what you inserted in the Outline panel .