Short Text : Full width or Half width

ショートテキストの部分で英数字の全角、半角の制御はできますか？

Hi ishigami385,

Thanks for reaching out to Jotform Support. Unfortunately, our Japanese Support agents are busy helping other Jotform users at the moment. I'll try to help you in English using Google Translate, but you can reply in whichever language you feel comfortable using. Or, if you'd rather have support in Japanese, let us know and we can have them do that. But, keep in mind that you'd have to wait until they're available again.

Now, let me help you with your question. Yes, it is possible. Let me show you how to enable short text width:

• In Form Builder, Click on Form Elements on the left side of your screen.
• Click on Short Text to add to your form page.
• Click on Gear Icon beside the short text field.
• A prompt will show on the right side of your screen.
• Click on the Option Section and Enable the Width Section.

You can check out this Demo Form so that you can test it by yourself. If you want to clone the form, you can check out this guide about How to Clone an Existing Form From a URL.

Give it a try and reach out again if you have any other questions.