Passing values selected in a dropdown in an interface

I have two tables. Organisations and Investors connected through common tags.
In the first page of my interface I can choose the list of investors from a dropdown. Once I select one investor, I get to see a list of tags connected to the investor on the same page. When I click on the tag, I see the list of organisations connected to that tag on the next page. I go through the list and choose one organisation for the investor using a checkbox field. As soon as I click the checkbox field, I want a column next to it updated with the name of the investor that I selected from the dropdown. Is there a way to pass the name of the investor selected from the dropdown from the first page to the second page?