Rename Texture

Hey guys, so i need help with the following:

I have a bed for example, it has textures applied on it, like "bump.jpg, wood.jpg", then on windows i use the program called Advanced Renamer to add a Prefix on them all, like "Bed18_", so all the textures now is like that "Bed18_wood.jpg, Bed18_bump.jpg".

But the problem is that when i open 3ds max i have to change all the textures one by one, dragging the renamed jpg to material editor and changing with the old one, and thats my question: Is there a way to add this Prefix name to all textures at once in max? Because sometimes theres a lot of textures and take a lot of time to change one by one.