Resolutions are designed to address issues like collections, pets, parking and architectural control that need a broader definition and enforcement policy. The criteria for amending documents is normally found in the governing documents. When amending the documents, work with a knowledgeable attorney. The board and attorney should agree on a fee prior to beginning the process. Owners input should be included in the amendment through a meeting or survey.
Involved owners are more likely to support it when they understand the goal.
Whether to consider single or multiple amendments simultaneously depends on the complexity of the issues. Too many complex amendments may be confusing. If the amendments are straight forward, include them all and vote on them individually. IF there is real need. But don't fix it if it ain't broke.