The Muli font is available as a google font - at https://www.google.com/fonts
Myriad Pro is an Adobe font which you get with Adobe products and can be obtained via TypeKit https://typekit.com/foundries/adobe.
If you don't want to go down that route, an alternative font will be used in place of any missing font within Designer.
Use print-ready keyboard shortcut cheat sheets to help increase your design efficiency. The cheat sheets are presented per Persona with additional gesture and expressions sheets included.
Affinity Designer Cheat sheets (Download)
Comprises:
Draw Persona
Pixel Persona
Advanced Text
Gestures
Expressions
Affinity Photo Cheat sheets (Download)
Comprises:
Photo Persona
Liquify Persona
Develop Persona
Panorama Persona
Advanced Text
Gestures
Expressions
Affinity Designer + Photo Cheat sheets Pack (Download)
If you’re a fan of customizing shortcuts to suit your preferred way of working, you can customize you own shortcut cheat sheets too. Simply download and edit an .afdesign template files in the Shortcuts Template zip file.
Lines reacted to acapstick in Affinity Keyboard Shortcuts, Gestures and Expressions