midfloat – Mixing onecolumn and twocolumn modes at any place of page

Pro­vides an en­vi­ron­ment \be­gin{strip} \end{strip} which in­serts its body as a full-width box on a twocol­umn page. The pack­age can give prob­lems with floats and foot­notes; foot­notes can sorted us­ing com­mands \foot­notemark/\foot­note­text.
The pack­age is part of the st­tools bun­dle.