I want to add a multiselect custom field under Accounts. 
I have another custom field 'Account Type' with two options.
I want the records of the second Account Type to be the option set of the new custom field.
Any idea on how to achieve it?
		
I want to add a multiselect custom field under Accounts. 
I have another custom field 'Account Type' with two options.
I want the records of the second Account Type to be the option set of the new custom field.
Any idea on how to achieve it?