How do I kern space between characters, there used to be in tool bar a icon to do that but on my latest version of inkscape I cant find it. only the lines spacing, where is the character spacing... I can kern character by character using alt and left arrow but very slow and inconvenient. Please somebody let me know where I can set the space between characters. Thank you

When the text tool is active, click the icon to the far right in the tool control bar.