High blood calcium (hypercalcemia) is a condition of too much calcium in your blood.igh blood calcium (hypercalcemia) is a condition of too much calcium in your blood.
Hiding and revealing your Facebook presence is easy, requiring only a few clicks. Sign in to your Facebook account and click the Chat box in the lower-right corner of any page. Click Options and select Go Offline to hide your name from Friends On Chat lists.ou can see a list of your available friends in two spots. The Friends On Chat list appears in the left column of your homepage, and the Chat box is in the lower-right corner of all pages.
So, letâs say you have a chat with a friend and then wish to delete that conversation. You can clear the Chat Window by clicking the little cog icon in the Chat Window, then click âClear Windowâ per the following screenshot: Clear Facebook Chat Window. BUT, all that does is clear the Chat Window.hen click the âActionsâ button in the upper right and select âDelete Messages.â. Delete Facebook Chat and/or Messages. You can now delete all. Or, select specific parts of the conversation to delete by clicking the check box next to each entry and clicking the âDelete Selectedâ button.