Good app, suggestions

I would love to see the following included:

1. Guide to Knots-- diagrams of the most common knots used for survival.

2. Morse code info

I may have other suggestions later once I go through it more in depth, but for now I think the knots are needed foremost & would make this a definite 5 star app (right now its 4.5!).

River2499 about Survival Pocket Ref