Electrotech selection

I've been using other wiring software like dia , visio and even freecad (win and linux)  but disliked it,  dia came closest to what i wanted  for simple things like my home electric wiringdiagram ,  but the all lacked features for my other applications

i've been looking at the forum, manual and online help for electrotech,   lots of features I like so before installing and be diasppointed again i have a single feature related question :
*  when i looked at the element properties explanation i noticed that the user can select for the colour property of a line element   any colour from the standard html  #ff.ff.ff range that is a lot of colours .

I need dual colour lines   ie  black-red, black-green, black orange, black-yellow.. geen-red  etc  . 
i've been using 8 different basic colours combinations that is a 56 colour combinations matrix ( the duals colours eg. black-black are single coloured),  and 3 non standard base colours with the 8 standard coloured lines that is an other 27 colour combinations.
currently we use the base colour and then use character indicators to address the secondary colour of the wire, this causes mistakes , but  its already better than using black drawing with colour coding in letters   

Well did I miss something while reading , Is my impression that lines (wires) can only have one colour  false or right ?   
This is why current drawing software isn't doing the trick for me .

Can anybody enlighten me