Using the pen tool with shapes.

[Mexie7]

Okay, so I do a lot of leather work. I wanted to start using the designer affinity app on iPad. It all worked nice at first. My problem is the following. I go into the shape section. I get a rectangle and then I tired to use the pen tool to mark some dots or little squares around it so then I can modify the rectangle and creat different shapes with it. I’ve done it before. I have also seen many people on YouTube do it. My problem is that now when I open a rectangle and then continue to get the pen tool. As soon as I try to press on the rectangle with the pen tool. It goes away and I’m just left with the pen tool. It does not let me modify the rectangle at all. It is frustrating and I have no idea why it won’t work anymore. Please help.
 

All I’m trying to do is use the pen tool to adjust or modify the shapes. 

[Alfred]

Welcome to the Serif Affinity Forums, @Mexie7.

Select the rectangle and choose ‘Convert to Curves’ from the Edit (‘...’) menu. Alternatively, press the ‘To Curves’ button that appears on the Context toolbar when a rectangle — or any other parametric shape — is selected and a Shape Tool is active. Once you’ve done that, you’ll be able to use the Node Tool to modify the shape to your heart’s content.