I was hoping I could get some answers .I have a Lathe with a 6 position tool changer the machine is a Dyna Myte  DM3000 is there a Macro for lathe tool changers  or dose the end user have to build one himself ? Is there a sample one floating around ? Is there anyone out there that can be hired to supply one? And how much would it cost?

If you have an ATC you will need to supply the tool changer code yourself.  There are examples in the Mach4 folder in "Lua Examples".
What is involved with the tool changer?  Does it have a motor that rotates the turret and also locks the turret when rotated in reverse?  Does it have switches the read the tool number?

It originally had a solenoid that would release the pawl so the turret could move Bi-directional and optical switch to read position. But I dont know how that works .I have a friend with the same machine using Mach3 and he only rotates in one direction then backs up against the pawl .Will a Mach3 macro work in Mach 4?

No, Mach3 uses VB Script Mach4 uses LUA.  It's a different scripting language.