
1 resposta
No.
There are various ideas for this if you want to vote for them.
http://success.salesforce.com/ideaview?id=08730000000BrBSAA0
In the meantime, most people who have a similar requirement use the Contact Roles related list. You still can only add the contact to one account, but you can link it to many accounts using the Contacts Roles related list. Let me know if you need more details on this workaround.