By dragging the dividers, similar to how you can resize the panes in jsfiddle.net

It is required to replace buttons Generate source code for new component and Generate source code for new function list with drop-down menus.

There should be options in the menu.
In the "Components" section:

• Generate source code for new component
• Install packages from the market

In the "Functions" section:

• Generate source code for new function list
• `Install packages f

Some connected devices can be irrelevant to that project, so it would be useful to be able to hide them. This of course also needs the option to show them again. Could go with expanding/collapsing, or just a "show more" option.