Keys and clicks

shift-click a package

add it to the focus, or drop it (Flowchart)

double-click a box

pin its lines; a second box adds its own

double-click empty space · Esc

let go of the pinned lines

space over a box

its details and code over the picture; space, Esc or a click on the picture puts them away

drag the panel's edge

make the code panel wider or narrower

?

this card; Esc closes it