Glass Block Windows

[facetsofdesign]

I am attempting to insert glass block windows in a plan. In the instructional videos glass block windows are only used for a partition wall not as a window material.

I went into the library and found glass block under masonry block and inserted in into my window library but it will not allow me to insert either into a blank wall or as a replacement for an existing window unit. Mayby I haven't got it set up in the library correctly?

Any suggestions. I'm only a beginner in Chief Architect and have enough trouble keeping track of the plans vs. the archives vs. back ups in multiple form. It's frustrating to not be able to do something as simple as install a glass block window for security in a commercial building.

Help!