To add a new node to 1Cademy map, you need to create a proposal. For this purpose, after identifying the prerequisite node, you should click the "Proposals" button on the node footer and click the appropriate proposal type from the list that shows up on the right, depending on the child node you'd like to add. Then, you'll see a new child node appears under your chosen prerequisite node. Replace its title and content. If necessary, upload an image for it. For each proposal, you also need to enter the summary of your proposal and justifications for why you propose this new node. Enter these two in their specified text boxes on the right sidebar. Finally, click the "Post" button. Note that you cannot modify the type of a node after proposing it.