how to erase the other map in my memo?

[agent_47]

well i have 3 maps in my warp portal memos i want to erase the other map of hugel and save the niff map warp.but i dont want to erase the odin 3 memo if i try to save the niff map would it possible randomly erase the odin3 map that i  have?coz basically i have hugel field map lh map and odin3 map..if i try to save the niff map it might delete my odin 3 map and odin3 map is very very rare and i dunno how to get there..i've been just luckily saved it before i was monk.im saving the odin3 map for my in the future sg in my other account.

[Tundramystic]

To make a long story short, I never seen a way where you can erase a memo unless there's a /erase command which I hever seen before. So you can only replace >:[

[LostLimit]

You can get to odin by taking the boat ride in hugel. NPC is at the right where the dock is I believe.