of the branch lines at a time [...] lines have to begin [...] . Parallel branch lines

of each alternative branch line [...] branch line [...] double line) is active

(horizontal line [...] branch line as a branch line on the far

lines. Select one of the double lines. The double line is marked

double line [...] single-line border

The horizontal connecting line

The horizontal connecting line

line

" You can insert line

of the rightmost branch line