You didn’t tell how you number your equations and how you insert this number into your text. If you feel like explaining to get more appropriate an answer, edit your question for details (don’t use your answer: this is a Question & Answer(s) site, not a forum and answers are reordered by “relevance”, thus losing the chronological sequence).
Basically, equations, tables, figures, … are numbered using a number range. You can have as many you like. Some are provided out-of-the-box for drawings, figures, illustrations, tables and texts (;i.e. text inside a frame). You can use of of these or create your own.
Numbering is inserted through a field:
More fields at
Select Type Number range, Select one of the counters (or create a new one entering its Name at the bottom), Format whichever you need. Numbering by Chapter is what you are looking for. Adjust
Level to cause reset when this level number changes.
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In case you need clarification, edit your question (not an answer) or comment the relevant answer.
As you noticed, AutoText creates a table. The second column is filled with Text “number range”. If you feel more comfortable than with manual insertion (as is possible with my answer, offering maximum flexibility for any user layout), you can customise settings for the Text number range as follows:
- anywhere in your document,
- select the Text number range
- set the Numbering by Chapter level
This has configured the Text number range. Erase your “fake” insertion. Now, whenever you use AutoText to insert a formula, the numbering includes chapter number.