Let me go through each word in the provided text, replace with synonyms where possible, ensuring not to touch proper nouns and that each word is replaced with three synonyms in spintax format. I need to be careful with phrases that are not single words. For example, "download and use" is two verbs, so each should be replaced. Also, "problem-solving steps" is a noun phrase; "problem-solving" can be replaced, or maybe the entire phrase.
Wait, "AutoCAD Lisp" might be a proper noun, so leave it as-is. "Lisp" here is part of the name, so no replacement. Similarly, "CAD" is part of "CAD-related", so that's a compound noun. Need to check if "CAD" is a proper noun. Since "CAD" is a technical term here, maybe replace "CAD-related" but leave "CAD" as part of it. But in the original text, "CAD-related" is two words, so I'll treat the entire term as a noun phrase. However, the user wants each individual word replaced if possible. Hmm. The instruction says "every word with 3 synonyms as spintax w3. Skip brands and names." So "CAD-related" is a compound adjective; should I split it into "CAD-related" as one unit or split into "CAD" and "related"? Since "CAD" here is a proper noun (Computer-Aided Design), I should leave "CAD" as is and only replace "related".
Spintax:
Second sentence: "Check the file version: Make sure that you are using a compatible version of the addlen.lisp file with your version of AutoCAD."
Let me proceed with the substitutions, keeping an eye on each word and ensuring proper nouns are untouched.
The first paragraph: "If you encounter any issues while downloading or using addlen.lisp, here are some common troubleshooting steps:"
"designers" → artists