Thank you.
I was going through these links.
They couldnt really help me with my problem, but got me a step forward.
I found a function that gives me the index of the selected table.
Then with tables.rows.count and columns.count i thought i could calculate how many cells the selected tables has. but as you can see in the picture above, the first table is flexible and the third row has only two columns.

could it be possible that i jump in the table from one bold cell to the next and if the previous bold cell is the same as the current bold cell, this table is done?

Hope someone can help me