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# General Information on Element Numbering

The process for changing and reassigning element numbers has been clarified. First, two buttons provide distinct next steps:

* Button 1: Reassign element number and sequence 
  * First, which prefix, type, and starting number the elements should receive is specified.
  * The setting most frequently used in the current building element (e.g., wall) is offered.
  * Elements can then be selected in their order. All receive the new prefix and type. The first receives the specified starting number, and the others are incremented.
  * At each step, any existing unique or sortable element numbers of other elements are adjusted as necessary.

 

* Button 2: Change element numbers for a single element
  * First, the element to be changed is selected.
  * Its current settings for prefix, type, and number are presented and can be adjusted.
  * At each step, any existing unique or sortable element numbers of other elements are adjusted as necessary.

The formatting of element numbers has been expanded:

* The number of digits for the number can be specified. The count is kept consistent with leading zeros. This yields the desired order even with alphanumeric sorting: