How can I enable it without having an office 365 subscription? is it possible?
How can I enable it without having an office 365 subscription?
Unfortunately, you can't.
From Using the Morph transition in PowerPoint (support.office.com):
Note: This feature is only available if you have an Office 365 subscription.
There is a backdoor to get morph in Desktop office without having an office 365 subscription.
- Create or open your presentation in the PowerPoint online
- Apply the morph transition wherever you want
- From the top ribbon in PowerPoint online, choose Open in Desktop App
- Even though morph transition will not show up as available, it will work when you launch your presentation