FX.111 CadCraft help: "Not built yet" said a hatch cannot follow its boundary; .pat files had no help

PLAN2D.1 links a hatch to its boundary and FX.47 loads .pat files, but "Not built yet" still listed both as missing and hatch.md did not mention .pat. Rows corrected (gradient fills stay listed; a link made in another program is not read), a Pattern files paragraph added to the Hatch topic (only files written to the usual format were tried). Help rebuilt. Checked by reading; no test.