I'd like to be able to set the focus of the current window/application using a hotkey. I'd like to set a custom hotkey for specific grids. Whenever I press that global hotkey, whatever window/application is in the associated grid becomes focused. That way I can quickly jump between my different terminal and coding windows without having to take my hands off the keyboard and select another window with my mouse, or use the terribly slow and disorienting alt-tab feature. With this, I could quickly go straight to the window I want and start typing input.
It would also be wonderful to save different profiles of hydragrid so that I could launch a specific profile ("programming"), and then have hydragrid launch all of the applications that I want and automatically arrange them into the grids that I have configured for them. This plus a hotkey feature would make hydragrid really useful for productivity.