Step 1

Builders> Predefined Values> Create New> SexualOrientation (this is not typo, do not use space)

Value: 1,2,3,4,5,6,7 or lesbian, gay, bisexual, transgender, straight, questioning, intersex

LKey: _Lesbian, _Gay, _Bisexual, _Transgender, _Straight, _Questioning, _Intersex 

LKey2: _LookinLesbian, _LookinGay, _LookinBisexual, _LookinTransgender, _LookinStraight, _LookinQuestioning, _LookinIntersex

Click Save.

Builders> Profile Fields

Drag NEW_ITEM to appropriate place in Join Form or Edit Profile

General

System Name: SexualOrientation

Caption: Sexual Orientation

Description: Please specify your sexual orientation

Type: Selector

Advanced

Selector control: your choice

Mandatory: your choice

Possible values: #!SexualOrientation

Used lang. key: LKey

Default: your choice (leave blank or choose one from Value found in Predefined Values> SexualOrientation

Messages

Mandatory error message: Please, specify your sexual orientation

Matching (hold that thought, this will be in Step 3)

Click Save.

Step 2

Drag NEW_ITEM to appropriate place in Join Form or Edit Profile

General

System Name: SeekingSexualOrientation

Caption: Seeking

Description: Please specify whom you are seeking

Type: Multiple Selector

Advanced

Selector control: your choice

Mandatory: your choice

Possible values: #!SexualOrientation

Used lang. key: LKey2

Default: your choice (leave blank or choose one from Value found in Predefined Values> SexualOrientation

Messages

Mandatory error message: Please, specify whom you are seeking (or leave blank if not mandatory)

Matching

Match with field: SexualOrientation

Match percent: your choice

Click Save.

Step 3

Click on SexualOrientation that you just edited.

Matching 

Match with field: dropdown and select SeekingSexualOrientation

Match percent: your choice

Click save.

Drag SexualOrientation and SeekingSexualOrientation in other area such as Edit Profile, View Profile and/or Search Profiles) 

Step 4

Settings> Languages Settings> Add Key

Category: System (already set but make sure it is System)

1) Key Name:

2) String Text For English Language:

_Lesbian

Lesbian

_LookinLesbian

Lesbian

_Gay

Gay

 _LookinGay

Gay

_Bisexual

Bisexual

_LookinBisexual

Bisexual

_Transgender

Transgender

_LookinTransgender

Transgender

_Straight

Straight

_LookinStraight

Straight

_Questioning

Questioning

_LookinQuestioning

Questioning

_Intersex

Intersex

_LookinIntersex

Intersex

_FieldCaption_SexualOrientation_Join

Sexual Orientation

_FieldCaption_SexualOrientation_Edit

Sexual Orientation

_FieldCaption_SexualOrientation_Search

Sexual Orientation

_FieldCaption_SexualOrientation_View

Sexual Orientation

_FieldDesc_SexualOrientation_Join

Sexual Orientation

_FieldError_SexualOrientation_Mandatory

Sexual Orientation

_FieldCaption_SeekingSexualOrientation_Edit

Seeking

_FieldCaption_SeekingSexualOrientation_Edit

Seeking

_FieldCaption_SeekingSexualOrientation_Search

Seeking

_FieldCaption_SeekingSexualOrientation_View

Seeking

_FieldDesc_SeekingSexualOrientation_Join

Seeking

Step 5

There may be empty captions in Edit Profile, View Profile, and/or Search Profiles

Go double-check... if that's the case, just fill in

SexualOrientation> Caption: Sexual Orientation

SeekingSexualOrientation> Caption: Seeking

Possible values: #!SexualOrientation    = error message " you entered an incorrect link" What I am doing wrong?

Are you sure that you created "SexualOrientation" correctly in Predefined Values? You may have typo there. Please check.

Thanks .. You right I did not do it the correct way.. now it works fine... :) but did not show up on profile because I use megaprofile mod.

This should work on ANY template/mod. Did you drag SexualOrientation to Edit Profile? Profile may be blank because front-end of Edit Profile has not been selected and saved? Also is SexualOrientation dragged in View Profile?

 Yeah, I can see this being a problem with Mega Profile because of the way Mega Profile is coded.

EDIT: That is is to say- One would likely need to do some modding to Mega Profile module itself as well.

Thank you for verifying. It's out of my reach, I don't use MegaProfile.

Here's a Demo / Test.

It seems a frequent request for MegaProfile, we have decided to add this feature (we have already got this request) the incoming week.

Just we must consider a standard procedure because this (sexual orientation) is not a default field for the profile.

Also, MegaProfile is ecoded only for the 2 files for the activaction and the license check. The rest is opensource, so it's possible to add this new information to the profile description. Anyway, we'll add this new info to the next version of MegaProfile.

Although I don't use MegaProfile but I welcome and thank you, ilbellodelweb, wholeheartedly for participating! 

 Still waiting for the Sexual-Orientation on the Megaprofile mod.