The already posted reply cannot be edited on your end. In case you have missed to add any information, you can post an additional reply.
If there is any confidential information you have posted in public forum by mistake and would like to remove, please share the forum thread in question and which piece of the communication should not be public. Then we, the Support Engineers, can proceed removing any posts or converting the whole thread to be private.
I hope that answers your query. Though, in case you need additional assistance, please let me know.