My Ex has this in the documents and I would like to have it clarified. I don't have money for a lawyer and only want more info on this part.

The parties have concluded that it is in the best interest of the said children that the physical custody of the children shall primarily rest with the Wife, with the children residing in the home of said party during the greater part of each year. The Husband is to have access and parental rights as specified below. It is agreed, however, that physical custody shall shift to the Husband, at such time as the children reside in the home of the Husband, plus any and all such other times as the Husband shall provide for the care and custody of the children, either in the home or otherwise, pursuant to the agreement of the parties. During these periods, the Wife shall have access and parental rights as specified herein below.

Thanks.