An easy to use, universal, simple, lightweight, compact, portable, dynamically configurable and modular system of concealment and shelter. An operator configures a number of concealment blinds or shelters using brackets, supports, segmented shafts, covers, curtains, and skirts, and more complex modules. The segmented shafts have both the ability to make an attachment to retain a particular configuration while being able to break down the shafts for transportation or storage. The brackets and supports are used to secure a configuration to a tree, the ground, or a hand held device. Advanced modules include user adjustable domes and cylindrical arches. The system can be configured for placement on a hillside or over rough terrain and obstacles. Multiple modules can be carried by separate members of a group and combined together to form a more complex structure to meet the needs of the group. The system provides a novel star window with independently opening sections. The window openings are configured in a number of configurations to meet the needs of the user. The configuration of the structure is changed by the user to quickly provide cover, increase cover, and to adapt to terrain or changing weather. The system includes a low cost method of tightening the skin on a cover to reduce wind movement and noise.