ok macro support has been added, well they are now ignored. I am going to get some code to do a small test on the tool definitions using macros and give a warning if they cause errors. But they wont lead to a error as i tool using a macro could take a value of 4mill ( which would fail the check) and multiply it by 2 and 3 in the macro (to get 8mill and 12mill which should not fail).
You will also notice a cool new look to the drill tool page, i am working on the rest of the pages slowly but surely. Next stage is to get a MYSQL database account up and running so users can register.