The "Manual Alignment" controls can be found on the Control page within Lightform Creator.
These controls allow you to perspectively warp ("corner pin") projects after you have published them to the device. This is useful, for example, if you need to re-align the published content after slightly moving the projector. Instead of needing to update your project and re-publish, the manual alignment controls allow you to tweak the perspective of your project to fix the mis-aligned content.
To manually adjust the alignment, simply use the mouse to click and drag any corner to a new position. Additionally, you can select individual corners and nudge them with the arrow keys. Hold the shift key for larger nudges.