How to link a simulink empty line with with model block and port

I would like to rout a empty line with a model block with specified blockname or handle and port by matlab command code could anybody give an idea to solve this?

[Shivaputra Narke]

what do you mean by "empty line" ?

[Chaniporn Yimyam]

like this ^^

Answer 1

[Arunkumar M]

add_line('linesMD','SignalBuilder/1','Out/1','autorouting','on');

add_line('linesMD','SignalBuilder/1','Out/2','autorouting','on');

add_line('linesMD','SignalBuilder/1','Out/3','autorouting','on');