How do I make a command block not have the typical [@] infront of a /say msg in MCPE?

If I write /say @p is cool into a command block, what pops up in the chat is:

[@]LolybeeHD is cool

How can I change the @ to something else (like "Server")?
Renaming the command block in an anvil sadly does not work.


Solution 1:

Unlike in the Java Edition, in Minecraft Pocket Edition renaming it in an anvil will not work. You must change the hover note in the command block editor.

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Once you enter in the command and activate the command block with redstone, it should say [(Hover Note)](Playername) is cool.