This is not correct. There are two ways to make a nest. You can bring one sequence from the browser into another and it retains the name you gave it in the browser. You can also nest clips within a sequence, which is when FCP asks you to name the sequence. If you name it 1N that’s the name that appears on the nested sequence inside the master sequence. That’s also the name that appears on the new sequence that appears in the browser.
“When you nest the sequence “A” ,it asks for a name & suppose u give the name A1,
Then the Nested sequence is named “A” & the Un nested is “A1”
I have no idea what this means, but unless you’re doing something truly bizarre this doesn’t happen. When you bring a sequence from the browser and place it in another sequence, the function called nesting, FCP does not ask you to name the nested sequence. The only time it asks you to name a sequence if when you nest clips within a sequence. If you already have a nested sequence inside a master sequence, and then select it and choose Sequence>Nest Items, it will ask you to name the nest, and the new nest will have the name you give it. But why you would want to do that I cannot for the life of me imagine?