Theoretically, you could. However, since you're not a tax pro, you should consider using a consumer product, such as TurboTax, to prepare the return instead.
Proconnect Tax Online (PTO) is designed for tax professionals; it requires input that takes a lot more technical knowledge than what novices normally possess and it doesn't provide the kind of guidance/prompts that are typically built into consumer products. To top that off, you also won't be able to e-file with PTO without a PTIN (which is issued only to tax professionals) and will need to print the return to file on paper.
Still an AllStar