Cannot insert link in table by menu command - only manually

[Nick]

Xubuntu 17.10
Zim 0.67

I create table, then try to insert link in it`s cell - but menu command was grey.

Then I opened txt-file in external editor and write [[...]] in it to create link - after this I save file and open it in Zim - and I see link in table`s cell and can open it by Ctrl-mouse-click.

But why it cannot be insert by menu command ?