Max value from each table

Hello collinsg 

thanks for your comment. 

I notcied my problem description was not clear.

in the code below, you apply the Max number from the list.

#"Rows + Max Indexstart" = Table.AddColumn(
   #"Added Max Indexstart col", 
   "Copy Rows and Add Max Indexstart", 
   each Table.AddColumn(
      [Rows],
      "Max Indexstart", 
      each List.Max(#"Added Max Indexstart col"[Max Indexstart])
   )
),

Instead I want to add number from each line, to the new table.

For instance, I want the first table to contain a new column with 1, and the second table a column with 566.

your solution was pushing the max (566) both tables.

are you able to advise how to correct it? 

thanks