Call for more example scripts

Can someone post the following examples:

1. Loop through all paragraphs in a document and if the paragraph has a specific paragraph tag (e.g., Heading 1) change one aspect of the paragraph, for example, the text color. (This avoids the need to change the style and remove all the overrides.)

2. Loop through all the tables in a document and change one aspect of the table, for example the column width of the second column.

Thanks