The problem
The users that I have tested my application on don't see that clicking individual cells in the grid gives them the possibility to configure the content of that cell. Basically they all interact with the grid as if it was a simple list.
Any ideas on how I can make it clear to the user that they can interact with each cell?
The background:
I have a view in my application that consists of a list of applications. Each application can be configured or removed by the user. So the first implementation was just a simple list with "Configure" and "Remove" buttons underneath.
Now I'm adding the possibility to deploy the applications to different devices. A requirement is to give the user a good overview of what applications a device has (and vice versa) and if there are any problems with the installation.
So I transformed the list into a grid where I added a column for each device where the intersection shows the relationship status between an application and a device.
In this example I have put the panel for management of the relationship inside the grid (accordion style). I have also tried putting the panel underneath the grid alongside the "Configure" and "Remove" buttons but the users prefer the accordion style.
One thing that I know might be confusing is that I only show the accordian with the panel if you select a cell that contains a relationship. So if the user clicks the first column with the application name the panel isn't displayed.
I should also add that I'm trying to keep the information in each cell to a minimum as this will make it possible to see more devices and applications at once. Right now the content consistsof a background color (green for Ok, yellow for problems and light gray for not present on device) and a simple text (✓, ! and -).