[Zubersoft]

The filter bar isn't currently configurable like that. The layout is currently statically defined in multiple files (one file per device size category - medium, large and x-large). Changing it to be dynamic requires a lot of UI and backend logic changes, along with additional changes for configuring it. That would require a sizeable amount of work. That's certainly something I can consider for the future, but at the moment, there are a large number of higher priority changes that need to be addressed.

In the meantime, you can find additional filters, such as signature, by tapping on the circle at the right side of the filter bar. This will bring up the additional filters dialog where you can make your selection.

Mike