All annotation actions (Draw, Hide, Show, Remove) are exposed as Element Actions accessible directly from your Bubble Editor’s Workflow workspace. Follow the instructions below:
For Drawing Annotations,

Open your Bubble page’s workflow editor.
Click "+ Add an action" → Element Actions → Interactive Annotations: Draw Annotation.
Configure these fields:
Element IDs: Enter comma-separated logical IDs of elements you wish to annotate (e.g., titleText,submitButton).
Type: Choose from styles such as underline, box, highlight, circle, etc.
Color: Set annotation color (#FF0000 or red).
Stroke Width: Thickness of the annotation line (in pixels).
Padding: Adjust spacing around annotations (top,right,bottom,left format).
Animate: Choose yes to enable animation or no for instant display.
Duration: Animation length in milliseconds (e.g., 800).
Iterations: Number of animation repetitions.

and for other actions you just have to define Element IDs field.