I cannot add a URL, linking to the Title of my posts, using the "Configure TextList" wizard. The 'Add URL' option is missing from the "Configure TextList" wizard.Similar to the shared design between the "HTML" and "Text" gadgets, it appears that the "LinkList" and "TextList" gadgets shared features.
Having fixed various Blogger accessory gadgets, it appears that Blogger Engineering has removed or updated some odd gadget features.
One previously discussed change, which received mixed reviews, was the positioning of new entries in the LinkList gadget. Now, we're seeing that the odd option, to add a URL to TextList entries, has been removed.
If your blog uses a TextList in the function of a LinkList, it's possible that you may be seeing this omission too. Barring the chance that Blogger Engineering can be persuaded to reverse their recent change, you may have to start a new LinkList gadget, and update your new gadget with the necessary URLs.
It appears that Blogger is redesigning some of their "multi personality" gadgets - and realigning or removing some options that may be redundant, given the context of the specific gadgets.
If the gadget redesigns affect your blog, that may be a change to which you may have to adjust.