Stash snippets

Filter plugin to make the usage of the block “Stash” a lot easier!
This plugin is retired in favour of the plugin Shortcodes , please use the latter instead.
Simplify the usage of the block Stash by providing shortcodes to place items.
Why using this?
With this filter the snippet to place the items becomes very simple:
[drop:123:abc]
Teachers do not have to switch to the HTML view of their editors
The shortcode is always visible when editing, unlike the Javascript snippet
Unlike the Javascript snippet, the shortcode will gracefully support newer versions
The snippet will (safely) make it through some security limitations