how to combine scheduled transactions and online banking data?

[Valentin]

Hello all,

I would like to know how I could combine scheduled transactions and my
online banking data. I already posted my problem on stackoverflow [0], 
but
for completeness' sake, here it is again:

I don't know how to combine scheduled transactions and banking data in
practice. What I have done already:

     - I am fairly new to accounting, but have read Accounting for
       Computer Scientists [1], so I know the basics.

     - I already used gnucash for a while and entered all my expenses and
       income. Now I want to automate things (starting from scratch).

     - I have some scheduled transactions, f.e. rent and the rent is
       substracted from my checking account each month. So I would like
       to create the transaction via gnucash's scheduled transactions
       functionality and confirm that the payment happened via the
       checking account data. That means I could plan ahead via scheduled
       transactions and can verify some transactions of my banking
       account. That is known as reconciliation. [2]

My problem is: I don't know how to combine the two. Can I match
scheduled transactions to be confirmed by imported data? How should the
account structure be for this?

A scheduled transaction, like rent

     - decreases my checking account
     - increases my rent account

and is unconfirmed. During reconciliation I would like to import my
banking data, but this would also decrease my checking account and
increase my rent account; the scheduled transaction has already been
created.

I think I don't get some part of the reconciliation or import process.

[0] 
<https://money.stackexchange.com/questions/63840/gnucash-how-to-combine-scheduled-transactions-and-online-banking-data>
[1] 
<http://martin.kleppmann.com/2011/03/07/accounting-for-computer-scientists.html>
[2] 
<https://www.gnucash.org/docs/v2.6/C/gnucash-guide/txns-reconcile1.html>

to the relevant part of the docs.

Best wishes and thanks for reading,
Valentin