1. No. It's even mentioned in the Online Help (https://helpx.adobe.com/indesign/using/footnotes.html):
[...] You can create footnotes or import them from Word or RTF documents. Footnotes are automatically numbered as they are added to a document. Numbering restarts in each story. You can control the numbering style, appearance, and layout of footnotes. You cannot add footnotes to tables or to footnote text.
2. This is not a Scripting question. Next time, please ask your general questions in the regular forum: