What I do is forward the chart of a patient whose visit is not finished to the "providers" box and open it back up when I am ready to add something to it, this mightalso be useful if someone else is going to take up where you left off. We use EPIC at the hospital, that is a HUGE EMR program, you can have two charts accessible through a tab at the top but not more than that. I think the ability to reopen a chart from your inbox is quite simple and avoids the potential errors related to making an entry into the wrong chart because you have more than one open.