Dear dr. abdulrahman ..

that is possible as you can design your access cavity and go on through the straight line ...

when you insert your cones in one side try to fill all additional cones then you go to other sides or other canals ... before you cut the excess overhead cones you can do confirmative xray and re do any canal independently

Hi Dear Mohammad

if you plan a straight-line access in your Endodontic practice so you could easily obturate more than one canal in majority of cases.