Hi all, I am working on building an app with a vertical gallery in it. I utilizing a vertical gallery to create a tablelike structure, that will be populated with information. the treeview as well as the visual can be seen below:

my gallery is within a normal containter(container5) which is within a horizontal container(container4). the purple headers are and the dropdowns are not within the gallery.
the problem that I am experiencing is that I not able to truly resize the gallery. I am able to set the size for the overall gallery, but upon clicking on the first row of the gallery(the gallery editor) Powerapps shows me a blue lined box that can be shrunk but cant expand its width beyond a fixed point(which doesnt allow me to add the rest of the fields needed) and clicking on it reverts the size of the overall gallery to this point, regardless of what I manually set. I have set container5 to have flexible width and to have the width specified by the gallery, and have tried setting a very large width for it as well but still cannot expand the gallery. here are some pictures of the above:


as you can see the first row of the gallery(blue box) reverts in size when i click to edit and I cannot expand the width out to the right beyond that point. I want to add more fields for the columns in purple headings but cannot because the gallery first row( bluebox )wont expand. any ideas on how to fix this?