Just uploaded version 1.2.2, it includes:
-A few minor bug fixes.
-A Marker system that allows you to snap the cursor to a set point on the canvas. Press and Hold the "R" key to set a Marker, then tap "R" to snap the cursor to that position. Note that the window will not snap to the Markers position, so if not using a Tool, the cursor will not leave the confines of the window.
-The "C" Key will now tell you the position of a set Marker.
-Pressing and Holding the Tab key will now reverse the order loaded images are toggled through.
-The TTS Button has been expanded into a TTS Menu. Open it by pressing F7 and use the Up and Down Arrows to select an available Voice. Pressing the Left arrow key will slow the rate of Speech, and pressing the Right arrow key will increase the rate of Speech.