patch 8.1.1553: not easy to change the text in a popup window commit https://github.com/vim/vim/commit/dc2ce58b5ac72e2af765385eb426660104816344 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 16 15:32:14 2019 +0200 patch 8.1.1553: not easy to change the text in a popup window Problem: Not easy to change the text in a popup window. Solution: Add popup_settext(). (Ben Jackson, closes https://github.com/vim/vim/issues/4549) Also display a space for an empty popup.

--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -822,6 +822,7 @@ static struct fst
     {"popup_hide",	1, 1, f_popup_hide},
     {"popup_move",	2, 2, f_popup_move},
     {"popup_notification", 2, 2, f_popup_notification},
+    {"popup_settext",	2, 2, f_popup_settext},
     {"popup_show",	1, 1, f_popup_show},
 #endif
 #ifdef FEAT_FLOAT