Multi-site Store Locator

Hi,

I have created a multi-site. But my brand specific stores site are accessible on both sites.

So if I have site A and Brand A, and stores a1, a2, a3 Site B and Brand B, and stores b1, b2, b3.

On site A, if I select change store I can select a1,b1,a2,b2,a3,b3 On site B, if I select change store I can select a1,b1,a2,b2,a3,b3

What I need to do is have site A can only see a1,a2,a3 and site B can only see b1,b2,b3.

How do I configure Store Locator to achieve this.