There are many settings in Dynamics 365 Online that can be changed via the PowerShell, such as this one, https://docs.microsoft.com/en-us/power-platform/admin/enable-rich-text-experience , for enabling rich text in the description field of appointments. There is an alternative to using the PowerShell which is to use Organization Settings Editor managed solution released by Sean McNellis of Microsoft. Download the solution from https://github.com/seanmcne/OrgDbOrgSettings

An earlier version of Dynamics 365/CRM introduced an inline edit view for Opportunity, Quote, Order and Invoice Products (line item products). But the inline edit view was a "special" view that could not be edited, for example, to show additional fields. But the editable grid control is available in the unified interface for line item products which means that custom public views can be used instead of the special inline edit view. See https://docs.microsoft.com/en-us/dynamic

Under the new storage model Storage Changes  additional instances can be created free of charge provided you have sufficient disk space available. You can manage instances in the "old" admin center, ( https://port.crm.dynamics.com/G/Instances/InstancePicker.aspx?Redirect=False ) (replace crm as appropriate for your region) but as AFAIK you can't create instance in the old admin center - they appear if you have an entitlement to one or purchase instances. But you can create in