Map Making Error, Help needed asap!

[DrowninG]

ok for some reason all the map is yellow in the attrib marks except the walls which are orange,

what i need to know is how do i do a mass erase like using the "FA" but i wanna make the areas walkable on. i did it ages ago but i cant remember how and ive tried laods of things

thx in advance

 

[DrowninG]

urgh sry to double post but i really need help with this so i need to bump it

 

[DeadlyEagle]

cant do mass erase, always save before you use FA attributes.
You can either start ur map over or remove them 1 by 1..