FM6 Relationship issue

[weirdo]

Can someone help point me in the right direction. I need to create a quick system in FM6. I have a table of people with 100 records in. I also have a table of Sites with 20 records in.

What I am trying to do is have a table that has a record for every site and every person. so 100 x 20.

My issue is that if I add a person it needs to add a record for each of the sites. Likewise if I add a site it needs to add a record for each person.

Can anyone give me any pointers

[Fitch]

So every person belongs to every site and v. versa? May I ask what the goal is?