This blogs focuses on how to add defaults to a SharePoint Customized (or PowerApps) form. The list in this demo includes all the column types including managed metadata. The video walks you through the steps in detail, however, this blog contains all the functions incase you want to copy and paste
This blog focuses on the on offline capability of PowerApps. Here you'll see the key features you need to add to your PowerApp in order to take input when there is no internet connection available and automatically upload it to your data connection. This written blog explains the features and the formulas/expressions used. The video deep-dives in the entire process. A copy of this app is attached to this blog.