where the MX records for 1.1.0 rc3 ... i know i must be really blind

Quote from testlabs

hi
when used the previous version of imscp to change manage a domain all i had to do was

Switch to Reseller -> Edit Domain -> set: Custom DNS records Yes/No ->Update/Save
Switch to domain ->Manage Domains ->Add custom DNS record ->Add/Save

in this 1.1.0 rc3 when i do
Switch to domain ->Domains ->Add custom DNS record ->Add/Save
all i see in the "Type" is
"A
AAA
SRV
CNAME
TXT"
i looked all over so now i can confirm that im blind as i cannot find where to add an "MX" record.
where do i find that MX stuff in this version 1.1.0 rc3

lol

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Hello ;

A dedicated interface has been added for external mail servers. You must enable this feature for your customers, by editing their domains (as reseller). Once you did that, click on the mail menu (as customer) and you will see the link for external mail feature on left menu.

Thank you for using i-MSCP