Изменение формы кадра данных без имени столбца в r

У меня есть такой фрейм данных:

structure(list(...1 = c(NA, NA, "name_var1", "obs1_var1", "obs2_var1"
), ...2 = c(NA, NA, "name_var2", "obs1_var2", "obs2_var2"), ...3 = c(NA, 
NA, "name_var3", "obs1_var3", "obs2_var3"), ...4 = c("Dimension", 
"Subdimension", "name_var4", "obs1_var4", "obs2_var4"), ...5 = c("Dimension1", 
"Subdimension1", "question1.1.1", "1", "4"), ...6 = c("Dimension1", 
"Subdimension1", "question1.1.2", "3", "2"), ...5.1 = c("Dimension1", 
"Subdimension2", "question1.2.1", "1", "2"), ...5.2 = c("Dimension1", 
"Subdimension2", "question1.2.2", "4", "1"), ...5.3 = c("Dimension2", 
"Subdimension1", "question2.1.1", "1", "4"), ...6.1 = c("Dimension2", 
"Subdimension1", "question2.1.2", "3", "2"), ...5.4 = c("Dimension2", 
"Subdimension2", "question2.2.1", "1", "2"), ...5.5 = c("Dimension2", 
"Subdimension2", "question2.2.2", "4", "1")), class = "data.frame", row.names = c(NA, 
-5L))

и я хотел бы превратиться в этот

structure(list(name_var1 = c("obs1_var1", "obs1_var1", "obs1_var1", 
"obs1_var1", "obs1_var1", "obs1_var1", "obs1_var1", "obs1_var1"
), name_var2 = c("obs1_var2", "obs1_var2", "obs1_var2", "obs1_var2", 
"obs1_var2", "obs1_var2", "obs1_var2", "obs1_var2"), name_var3 = c("obs1_var3", 
"obs1_var3", "obs1_var3", "obs1_var3", "obs1_var3", "obs1_var3", 
"obs1_var3", "obs1_var3"), name_var4 = c("obs1_var4", "obs1_var4", 
"obs1_var4", "obs1_var4", "obs1_var4", "obs1_var4", "obs1_var4", 
"obs1_var4"), Dimension = c("Dimension1", "Dimension1", "Dimension1", 
"Dimension1", "Dimension2", "Dimension2", "Dimension2", "Dimension2"
), Subdimension = c("Subdimension1", "Subdimension1", "Subdimension2", 
"Subdimension2", "Subdimension1", "Subdimension1", "Subdimension2", 
"Subdimension2"), Question = c("question1.1.1", "question1.1.2", 
"question1.2.1", "question1.2.2", "question2.1.1", "question2.1.2", 
"question2.2.1", "question2.2.2"), Value = c(1, 3, 1, 4, 1, 3, 
1, 4)), class = c("tbl_df", "tbl", "data.frame"), row.names = c(NA, 
-8L))

... И продолжая все наблюдения в исходном кадре данных. есть идеи как это сделать?

Заранее спасибо за ваши комментарии и помощь.