You can store your own personal snippets of HTML in our Shortcode Manager.
Setting up your shortcodes:
To access it, click on the hamburger menu on your left and find the link 'Shortcodes':
You will be able to easily add new shortcodes by clicking 'Add item':
A new Name and Embed Code field will pop up, where you can input an identificatory name tag and the necessary code:
You can delete any shortcodes inputted by clicking on the small trash can on the right.
Using the shortcodes in the Entry Editor:
In the Entry Editor, the shortcode shows up when you click on the  icon.
You can choose in a drop-down from the different shortcakes you've set up in the dashboard.
This feature can be used for inserting ad codes inside a post, or simply keeping handy a tracking pixel or any code you may want to quickly embed in our Entry Editor.
Shortcodes are now updated on old articles automatically! So if you have updated a shortcode on your shortcode manager, it retroactively changes on previous posts.