Hi Sigitas

Thanks for your post and I'm sorry for the trouble with your lines. You can learn how to change size thickness position and other line styling in this Customizing Line Style video. If this isn't working as shown in your account please send a screenshot of what you are seeing and I would love to take a closer look.

Hi thank you for your response. But my problem is a bit different from the explanations given in the video. Here is the screenshot please notice that the "shape option" window is inactive so I can't modify the size and position of the line.

Thank you.

Hi Sigitas

Thank you for getting back to me and for including the screenshot. The edit menu that is open in the screenshot can only be used to edit shapes. To edit lines you will use these icons across the top:

These edit (from left to right) line color/opacity line style line thickness line curve options arrow options and direction of lines. Hope this helps!