Should be able to target invs/hidden players if you have see invis
 

I was unable to find the older p99 patch notes for this being removed. It should be added back in as of the July 24 2001 patch.

/target playername will now work on invisible targets as long as the character doing the targeting has the ability to see invisible.

http://www.tski.co.jp/baldio/patch/20010724.html

bump

Still not patched yet

omg buff classes everywhere are begging you...I hope this one goes in.

Bump