[Addin] Multiple ToolWindow

Armandb

<span style="font-size: 10pt; line-height: normal; font-family: 'Comic Sans MS';">Hello,</span><div style="font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><span style="font-family: 'Comic Sans MS';"><br></span></div><div style="font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><span style="font-family: 'Comic Sans MS';">It's my first post in this forum, </span></div><div style="font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><span style="font-family: 'Comic Sans MS';">I've work with VisualStudio and use VB.net programmation.</span></div><div style="font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><span style="font-family: 'Comic Sans MS';"><br></span></div><div><div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Comic Sans MS';">After several searches, I have not found my solution.</span></div><div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Comic Sans MS';"><br></span></div><div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Comic Sans MS';">In fact, I want to open my toolwindow previously closed, but that is in the Window menu as shown in the screen below:</span></div></div><div><span style="font-family: 'Comic Sans MS';"><img src="https://mail.baron-groupe.fr/owa/attachment.ashx?id=RgAAAABz/U0YwWFES4O9SVS9hwJPBwBqTfES7p0+RrQs1PPUk2fiAAAAFwC/AABqTfES7p0+RrQs1PPUk2fiAAAAREVYAAAJ&amp;attcnt=1&amp;attid0=BAABAAAA&amp;attcid0=image003.jpg@01D04CF1.E912B110&quot;&gt;&lt;span style="font-size: 13.3333330154419px; line-height: normal;"><br></span></span></div><div><span style="font-family: 'Comic Sans MS';">This would prevent me to accumulate the same toolwindows.</span><br></div><div><span style="font-family: 'Comic Sans MS';">I remain at your disposal for any additional questions,</span><br></div><div><span style="font-family: 'Comic Sans MS';">Best regards </span></div><div><span style="font-family: 'Comic Sans MS';"><br></span></div><div><span style="font-family: 'Comic Sans MS';">Armand,</span></div>