With this tool you can:

2.  
4. Create drafting elements (bubble grid, running number, series of dimension set, double line, stud and column placement etc.)
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8. useful utilities such as replace block, update bubble, cut wall, flip door/window block etc.)
10.  
12. AEC tools such as placing door / window on wall, sanitary placement, lift shaft, steel profile, stair elements etc.)
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16. Annotation tool such as tag, symbol with scaling and standard layer control.
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20. Layer utilities: sets of layer utilities that control by sample on screen.
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24. Door/Window drawing tool: sets of standard door / window drawing tool. You can use this tool create custom size and prepare for block creation startup.