A Template of EA generator Web Application by GAS

I wish to make EA generator Web Application.

From start, I wish to make simple version by Google App Script or Python.

Is it possible to create template of drop-down to convert some code?

My budget is $1000, negotiable.

I am imagining, for example, if pulldown 1.1 BuyOrderA MA,BB,MACD... text input 1.2 period, pull down....2.1 Above Below.. 3.1BuyOBuyOrderB MA,BB,MACD... text input 3.2 period... Like this. I only to wish to get template of GAS or Python. I will customize by myself. Thank you.