Let me see if I have understood your question correctly: You wish to add multiple modifiers to describe a single noun. Is this correct?

If so, there is theoretically no limit on the number of adjectives or clauses you can add to modify a noun. However, there is a limit to human cognition, so as a matter of good writing (and this is just my personal opinion), I would not add more than three adjectives and no more than three modifying clauses strung together by the conjunction "and." Of course, the longer each clause is, the fewer clauses should be used. You can instead separate the thought into multiple independent sentences to make it easier to comprehend the complex structure.

For example, say you wish to modify the word "Prius."

You can say: 

The innovative, revolutionary, and popular Toyota Prius that has taken the market by storm, created a loyal customer base, and incorporated a complex hybrid fuel system, is now in its fifth generation.

As you can see, we added three adjectives (four if you count the company name "Toyota"), and three modifying clauses (1) taken the market by storm; (2) created a loyal customer base; and (3) incorporated a complex hybrid fuel system, for a total of six (or seven) modifications to the word "Prius."

Again, given the limit of human cognition, I would not go beyond three modifying clauses. And if the clause it particularly long, I would use only one, and split the thought into multiple sentences.

I hope I understood your question correctly and gave a helpful response!

How to modify a modifier?

In the following sentence:

We feel that this simplicity makes filters are less prone to abuse, since they are essentially just functions with decorators that make Python usable inside of Django temlates.

I understand that:
The functions make Python usable inside of Django templates.

My question:

How do I modifiy the word "docorators" in this sentence?
( perhaps, docorators that we have mentioned before or docorators, which ... )

.... just functions with decorators [ modifiers ] that make Python ....

Or, the sentence structure must be re-built from scratch?

Thanks

My correction:

We feel that this simplicity makes the filters less prone to abuse; since they essentially just function as decorations that make Python usable inside of Django templates.

I rebuilt the second part from scratch.
Here are some links to copy and paste that may help understand the corrections for that sentence:

http://theoatmeal.com/comics/semicolon

http://snarkygrammarguide.blogspot.com/2010/09/dangling-modifiers-participle-principle.html

http://examples.yourdictionary.com/examples-of-misplaced-modifiers.html

http://www.writingcentre.uottawa.ca/hypergrammar/modifier.html

Note: first two links are humerous but the grammer is also correct.