Hi

In many situations you feel that c_trace or c_scan could also have an additional option of ignoring invisible entities with a simple IGNORE_INVISIBLE flag.
I feel its pretty useful if you want say a trace beam to ignore invisible stuff.
Agreed that flag2 could be used too,but that just wastes the purpose of flag2 for making only a certain group of entities ignorable.I think adding this will add much more usage flexibility.

regards
zazang