app/javascript/vue/tasks/biological_associations/biological_associations_graph/lang/help/en.js
export default {
canvas: `
<ul class="no_bullets">
<li>Right-click - Add and edit</li>
<li>Left-click node - Select nodes</li>
<li>Left-click canvas - Deselect all</li>
<li>Left-click-drag (on canvas) - Pan</li>
<li>Shift-left click - Group select</li>
<li>Command/ctrl click - Left-click and drag to group select</li>
</ul>
`
}