Show field list in PT is blank (N/A)

Hello there.

I have forgot how, but days ago I managed to show pivot table only as a normal table, without signs that this is pivot. Now I'd like to add another filter into it and got stuck: in menu "Analyze" icon "show field list" is blank / not available. Same happens at right click on the table - no luck.

What have I done wrong? How can I manage PV again?

Thanks.

Well, I did not change it as normal table.

I just "removed" the look of pivot table. Everything still works fine (refresh data etc) and also if I want to, I can easily turn on Field Headers and choose only selected data and so on.
Therefore I belive my table is still pivot, it's just something I need to turn back on if I want to modify it.

But I don't know where is that icon or something... :-)