DSYNC can build a custom field within your Neto backend, which will allow you to choose which products are synced to Marketplacer.
This can be found when you click on your chosen product.
Then scroll down the left-hand panel and then click on "Other".
Depending on which marketplace you want to list the product in, the function will be called "List on... [name of marketplace]". So if you want to list it on Outdoria, the name of the function will be "List on Outdoria".
If you choose "Yes" for this function, then whatever updates you make to that product will sync to your Marketplacer store.
If the product doesn't exist in Marketplacer, than the first update you make to it in Neto will ensure it is created and published in Marketplacer.