Well if you do want to make it so you can name ur shop u could always make each name input a different word in the shop (example Name input (player inputs hello.) asks the player if they want to add another word into the shop. than they input another word (lets say cookies) so they shop name is "Hello cookies"
Than in a message box you right \N \N
Man im bad at explaining things... and thats just stupidly complicted, so feel free to ignore it.