Recent changes to 16: Layer groups

Recent changes to 16: Layer groupshttps://sourceforge.net/p/pythoncad/pythoncadwishtraker/16/2010-08-19T08:09:28ZRecent changes to 16: Layer groupsLayer groups2010-08-19T08:09:28Z2010-08-19T08:09:28Zcarlopavhttps://sourceforge.net/u/carlopav/https://sourceforge.net3893797c03419fd86588689b42e8a99bdf43ac49

<div class="markdown_content"><p>the possibility to group layers could really speed up drawing process</p></div>