I've been new to hammer earlier this year but have come a long way. Now I feel as though I'm ready to start doing some extended test design aka custom test elements . At the moment I'm not going to be doing custom weapons or anything but I thought I'd start with something easy, gravity. So I'm creating a co-op map that uses a limited time gravity button with sv_gravity 100 on it. The problem is, I get a message saying "sv_tags set to gravity" and then I can't jump at all. This only happens when I set the gravity below 200. The second problem is the visibility of console commands. When a command is entered into the point_servercommand entity big yellow text appears on the screen telling the players what was changed. I want to make this text invisible but don't know how. Help would be appreciated, thanks.

To hide the yellow messages use "hud_saytext_time 0" and I'm pretty sure 200 is the limit for sv_gravity