MacOS: Bullet and Numbering
You can easily create Bullet and Number list while composing email in Airmail.
Please refer to these screenshots to do so:
Please tap on the Bullet icon as explained below:
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Please select Bullet or Number mark from the drop down:
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Please refer to these screenshots to do so:
Please tap on the Bullet icon as explained below:

Please select Bullet or Number mark from the drop down:

Updated on: 01/06/2019
Thank you!