Embed a FormTitan form in Salesforce Classic or Lightning

1. Go to Setup > visualforce pages.

2. Click the "New Button".

3. Name the page.

4. paste in the following code: 

<apex:page standardController="<your object name>" showHeader="true" sidebar="true">
    <iframe src="<your ft url>?<your record id field id>={!yourObject.Id}" width="915px" height="870px" />
</apex:page>

** (You may add additional params to your form such as: the current Salesforce UserID like so:  <iframe src="<your ft url>?<your record id field id>={!yourObject.Id}&<userd id hidden fldid>={!$User.Id}" width="915px" height="870px" />)

5. Save your page.

All that is left to do is add it to the layout.

In classic version:
- Go to your record page,
- Select a record, and click edit layout,
- On the left side of the layout menu select 'visualforce pages'.
- Drag your page to the layout,  It'll display in lightning as well. 

 

In lightning: 
- Goto Setup> object manager > your object > Page Layouts > edit layout,
- On the left side of the layout menu select: 'visualforce pages'.
- Drag your page to the layout, it'll display in Classic as well.