You can mark Azure Subscription Directory as Favorite in Azure Portal. While working with Azure, you may deal with multiple Azure Subscription and Several Directories. When you set up your subscription, it automatically creates an Azure Active Directory for the subscription. You can have multiple directories configured under your Azure Subscription, under which you provision all the resources for authentication and identity management.
Mark Azure Subscription Directory as Favorite in Azure Portal
When you have multiple directories, and you have a couple of them to access frequently, you can mark them as favorite.
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From the Azure Portal, Select the “Directory and Subscription Filter” option. The “Directory + Subscription” blade will appear. It will list out all the directories and you need to select the “Favorites” icon to mark them favorite.
Once done, you will be able to find them under “Favorites” tab. Then onward, you can directly go the favorites tab and change the directory.