If we talk about the features of laying such blocks, then they can be stacked both by the groove up and the groove down. However, it is recommended to place the groove up, then putty is distributed evenly. For installation, glue-spaces are used on a gypsum basis, but you can replace it with similar materials. Using the level and plumb, you must carefully ensure that all the blocks are located in the same plane. In the event that you have to cut a gypsum unit, this will not be difficult, using a hacksaw or a special power tool, you can easily cut off the desired part.