DITA 1.3 bookmap, how to exclude lower level headings

I'm using FM 2022 to rewrite our guides in DITA 1.3 compliance.

• So far I have made minor adjustment to paragraph style and save them in EDD file, and combined the EDD with a topic template - which keeps all of my specific formatting.
• I have began to create my first bookmap by "chapter/topicref" the contents.
• I published the book with 'save PDF via Book with components route' to get the best visual result, while generating TOC and everything else.
• My current problem is to limit TOC entries within the first two level headings, because my level 2 heading is practically just an intro title for the level 3 heading. This means both headings would have the same page number, and it's doubling the TOC length for no purpose.

1. How do I exclude the 'steps' section from the TOC? I have tried to modify the TOCTpl.fm reference page, but all I have done was removing the trailing dots and page number - the section heading is still included.
2. Some heading titles are also longer than the rest - i.e. page 2 and page 8, pushing out the page numbers. Is there a way to truncate the titles, or wrap them to a new line?