changing pencil type

after I have morphed a line, and then converted the morph to to separate drawings, I would like to change the pencil lines to textured ones, for instance such as “chalk” or “charcoal” and so forth, doing it by selecting the pencil editor then selecting all lines and modifying the type of pencil one hundreds of drawings isn’t possible, would it be imaginable to make a button or a script, to systematize the procedure of selecting all lines in a drawing and modifying the type of pencil line?