only three commands to allow ???

[Kamal, Nasir]

I am just a novice for sudo, started working today.
I want a user named "nasir", to be able to run only three commands and
nothing else after telneting the machine ultra4.
The commands are:
/usr/sbin/reboot
/opt/net/suitespot/https-****/stop
/opt/net/suitespot/https-****/sart

Where https-*** are different directories each having start and stop script
in it.

Also let me know can I edit /etc/sudoers file manually or do I have to use
visudo command ?? After editing the file what command should I run so that
sodu program reads the new config??

Thanks in Advance.

Nasir Kamal
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