@Ohiseenow
I believe the boot mechanism you want is bcdedit
The basics here:
Microsoft - Adding Boot Entries
There are a number of articles on the subject on the 'net.
For example, use your favorite browser and search for information.
Start with (for example) search phrase: add boot option to bcdedit
Change the search phrase to narrow your search.
An older but much used article explains how to add the "Safe Boot" option to Windows 10:
Boot Screen > How to Add Safe Mode to Boot Options in Windows 10
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Dragon-Fur
